78542575932 has 48 divisors (see below), whose sum is σ = 186929063552. Its totient is φ = 25660601280.

The previous prime is 78542575927. The next prime is 78542575957. The reversal of 78542575932 is 23957524587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17583 + ... + 396729.

Almost surely, 2^78542575932 is an apocalyptic number.

It is an amenable number.

78542575932 is an abundant number, since it is smaller than the sum of its proper divisors (108386487620).

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

78542575932 is a wasteful number, since it uses less digits than its factorization.

78542575932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379498 (or 379496 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 57.

The spelling of 78542575932 in words is "seventy-eight billion, five hundred forty-two million, five hundred seventy-five thousand, nine hundred thirty-two".