78722088964 has 12 divisors (see below), whose sum is σ = 137770368064. Its totient is φ = 39359126664.

The previous prime is 78722088953. The next prime is 78722088971. The reversal of 78722088964 is 46988022787.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

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, 385032 + ... + 552895.

Almost surely, 2^78722088964 is an apocalyptic number.

It is an amenable number.

78722088964 is a deficient number, since it is larger than the sum of its proper divisors (59048279100).

78722088964 is a wasteful number, since it uses less digits than its factorization.

78722088964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958914 (or 958912 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 78722088964 in words is "seventy-eight billion, seven hundred twenty-two million, eighty-eight thousand, nine hundred sixty-four".