78859228464 has 60 divisors (see below), whose sum is σ = 220811382792. Its totient is φ = 26272704000.

The previous prime is 78859228429. The next prime is 78859228529. The reversal of 78859228464 is 46482295887.

78859228464 is a `hidden beast` number, since 7 + 8 + 85 + 92 + 2 + 8 + 464 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136264 + ... + 419864.

Almost surely, 2^78859228464 is an apocalyptic number.

It is an amenable number.

78859228464 is an abundant number, since it is smaller than the sum of its proper divisors (141952154328).

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

78859228464 is a wasteful number, since it uses less digits than its factorization.

78859228464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285546 (or 285537 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 78859228464 in words is "seventy-eight billion, eight hundred fifty-nine million, two hundred twenty-eight thousand, four hundred sixty-four".