7,200,000,000
The estimated trillion digits of pi are 27 trillion digits. An exact equal value would require an infinite number of digits and cannot be proved to any exact trillions.
Starting from the right, you place a comma after every 3 digits. Thus, it would read 127,992.
If you use U. S. English, this number should normally be written out as follows if digits are to be avoided completely: "five trillion five hundred nine billion two million seventeen thousand eight hundred"; many Southerners would write, "five trillion five hundred and nine billion two million seventeen thousand and eight hundred"; some would add commas as follows, "five trillion, five hundred nine billion, two million, seventeen thousand, eight hundred". The Modern Language Association, however, recommends using digits for such large numbers, even in writing.
If using $1,000.00 bill, one million would be 4 inches. A trillion would be about 63 miles.
They are approximately equal to the circumference of any given circle divided by it's diameter. Approximately because an exactly equal value would require an infinite number of digits. Those same first 2.7 trillion digits were recently computed on a desktop computer by Fabrice Bellard, a record accomplishment that would be impossible to reproduce in a wiki.
Since each comma separates 3 place values (representing a multiple of 1000) then a 1 with 18 zeros = 1018 would have 6 commas. Depending on if you're using the short scale system (billion = 109) or the long scale system (billion = 1012 ), will determine the name of that number. 1018 in the Short Scale is quintillion, and in Long Scale is trillion. See related link.
I have it right here in front of me. Unfortunately, in order to upload a googol digitsto the internet, even at the upload speed of 100 MB per second that I have here inmy house, would take 3.17 trillion trillion trillion trillion trillion trillion trillion years ...even after I finished typing them, and I have other work to do today.Notice that if you tried to download the number, it would take the same length of time,and you'd need a trillion trillion trillion trillion trillion trillion trillion Terabytes of availablehard-drive space to store it.Honest, I'd send it to you. But I was telling a little fib up above, where I said I have itright here in front of me. I don't. The truth is that so far, pi has only been calculatedto something like 6 trillion digits. A googol is something like 1.67 thousand trilliontrillion trillion trillion trillion trillion trillion times more than that. So you'll have to waita while, until the Japanese mathematicians and their supercomputers catch up withwhat you're asking for. Until then, save your pennies. It'll take them a serious-bigshipment for them to send it to you, even on DVDs.
At 18 digits, you'd be looking at a quantity of 100 Quadrillion. For instance: 111,222,333,444,555,666 is an 18 digit number. 15 digits would be 100 trillion, and 12 digits is 100 billion.
It wouldn't exist as the gravitational attraction would tear the planet apart.
First of all, I would write it using commas: 480,000,000. Then it becomes easy: 480 million
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
3.9 trillion would be 3 trillion and 900 billion - 3,900,000,000,000