86491579568 has 20 divisors (see below), whose sum is σ = 168296659128. Its totient is φ = 43060183680.

The previous prime is 86491579469. The next prime is 86491579613. The reversal of 86491579568 is 86597519468.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86491579498 and 86491579507.

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, 11596538 + ... + 11603993.

Almost surely, 2^86491579568 is an apocalyptic number.

It is an amenable number.

86491579568 is a deficient number, since it is larger than the sum of its proper divisors (81805079560).

86491579568 is a wasteful number, since it uses less digits than its factorization.

86491579568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23200772 (or 23200766 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 68.

The spelling of 86491579568 in words is "eighty-six billion, four hundred ninety-one million, five hundred seventy-nine thousand, five hundred sixty-eight".