A serious load of zeros.
1023456789
10 to the 100th is... 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,00 .... 10 to the 100th is a googol, or a number with 100 zeroes after it.
10 billion to the 100th power is 1.e+1000
The largest ten digit number with no repeated digits is '9876543210'.
The largest number with no repeated digits is 9,876,543,210 although it is 10 digits long, the largest 3 digit number with no repeated digits is 987
The largest 10-digit number with no digit repeated is 9876543210 !
0123456789
10
9,999,999,999
10 to the 100th is commonly known as a "googol." It is written as the number 10 followed by 100 zeroes.
5.15377521 × 10 *47
The largest ten digit number with no repeated digits is '9876543210'.