8931318372 has 36 divisors (see below), whose sum is σ = 23764620880. Its totient is φ = 2820416112.

The previous prime is 8931318367. The next prime is 8931318419. The reversal of 8931318372 is 2738131398.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6528058 + ... + 6529425.

Almost surely, 2^8931318372 is an apocalyptic number.

It is an amenable number.

8931318372 is an abundant number, since it is smaller than the sum of its proper divisors (14833302508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8931318372 is a wasteful number, since it uses less digits than its factorization.

8931318372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13057512 (or 13057507 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 8931318372 is about 94505.6525928476. The cubic root of 8931318372 is about 2074.7790636784.

The spelling of 8931318372 in words is "eight billion, nine hundred thirty-one million, three hundred eighteen thousand, three hundred seventy-two".