There is no such number. If there was one, simply add another digit at the end and you will have a larger number.
99996
852
Using those 4 digits 6451 is the largest odd number you can make.
8752
93,998
The largest 5-digit prime number is 99,991
Arranging them in the order 9521 produces the largest number. Using operands, using the exponential function (if available) would create the largest number. [(2 ^5)^9]^1= 35184372088832
3^(4^(5^(6^7)))
The prime factors of 100 are 2 and 5; the largest of these is 5. The largest prime number under 100 is 97.
The largest 5 digit number is 99999. If this is divided by 11 it leaves a remainder of 9. Therefore the largest 5 digit number divisible by 11 is 99999 - 9 = 99990.
Let's start with 99999. It is 5 digits and the largest 5 digit number. Now it is odd, so let's find the largest replacement for the last 9 so we can make it even. That would be 8, so we have 99998. Now, let's just put a 3 in the thousands place and we have 93998
951999