8991113685795 has 32 divisors (see below), whose sum is σ = 15985750003200. Its totient is φ = 4794796264032.

The previous prime is 8991113685761. The next prime is 8991113685821. The reversal of 8991113685795 is 5975863111998.

8991113685795 is a `hidden beast` number, since 8 + 9 + 9 + 1 + 11 + 36 + 8 + 579 + 5 = 666.

It is not a de Polignac number, because 8991113685795 - 2⁸ = 8991113685539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1823305 + ... + 4615914.

It is an arithmetic number, because the mean of its divisors is an integer number (499554687600).

Almost surely, 2^{8991113685795} is an apocalyptic number.

8991113685795 is a deficient number, since it is larger than the sum of its proper divisors (6994636317405).

8991113685795 is a wasteful number, since it uses less digits than its factorization.

8991113685795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6449576 (or 6449570 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 72.

The spelling of 8991113685795 in words is "eight trillion, nine hundred ninety-one billion, one hundred thirteen million, six hundred eighty-five thousand, seven hundred ninety-five".