86931960875 has 16 divisors (see below), whose sum is σ = 108519989760. Its totient is φ = 69527041600.

The previous prime is 86931960853. The next prime is 86931960877. The reversal of 86931960875 is 57806913968.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-86931960875 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86931960877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388406 + ... + 569844.

It is an arithmetic number, because the mean of its divisors is an integer number (6782499360).

Almost surely, 2^86931960875 is an apocalyptic number.

86931960875 is a deficient number, since it is larger than the sum of its proper divisors (21588028885).

86931960875 is a wasteful number, since it uses less digits than its factorization.

86931960875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185287 (or 185277 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 86931960875 in words is "eighty-six billion, nine hundred thirty-one million, nine hundred sixty thousand, eight hundred seventy-five".