86978342924 has 54 divisors (see below), whose sum is σ = 167667328164. Its totient is φ = 39154135040.

The previous prime is 86978342917. The next prime is 86978342933. The reversal of 86978342924 is 42924387968.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 338437004 + ... + 338437260.

Almost surely, 2^86978342924 is an apocalyptic number.

It is an amenable number.

86978342924 is a deficient number, since it is larger than the sum of its proper divisors (80688985240).

86978342924 is a wasteful number, since it uses less digits than its factorization.

86978342924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 443 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 62.

The spelling of 86978342924 in words is "eighty-six billion, nine hundred seventy-eight million, three hundred forty-two thousand, nine hundred twenty-four".