78858768 has 40 divisors (see below), whose sum is σ = 204228000. Its totient is φ = 26220544.

The previous prime is 78858749. The next prime is 78858779. The reversal of 78858768 is 86785887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19723 + ... + 23381.

It is an arithmetic number, because the mean of its divisors is an integer number (5105700).

Almost surely, 2^78858768 is an apocalyptic number.

It is an amenable number.

78858768 is an abundant number, since it is smaller than the sum of its proper divisors (125369232).

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

78858768 is a wasteful number, since it uses less digits than its factorization.

78858768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119 (or 4113 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 57.

The square root of 78858768 is about 8880.2459425401. The cubic root of 78858768 is about 428.8281922969.

It can be divided in two parts, 7885 and 8768, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 78858768 in words is "seventy-eight million, eight hundred fifty-eight thousand, seven hundred sixty-eight".