9108931718072 has 16 divisors (see below), whose sum is σ = 17093212032240. Its totient is φ = 4550741842816.

The previous prime is 9108931718041. The next prime is 9108931718137. The reversal of 9108931718072 is 2708171398019.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9108931717999 and 9108931718017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465491633 + ... + 465511200.

It is an arithmetic number, because the mean of its divisors is an integer number (1068325752015).

Almost surely, 2^{9108931718072} is an apocalyptic number.

It is an amenable number.

9108931718072 is a deficient number, since it is larger than the sum of its proper divisors (7984280314168).

9108931718072 is a wasteful number, since it uses less digits than its factorization.

9108931718072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931004062 (or 931004058 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 56.

The spelling of 9108931718072 in words is "nine trillion, one hundred eight billion, nine hundred thirty-one million, seven hundred eighteen thousand, seventy-two".