78712163075 has 120 divisors (see below), whose sum is σ = 129100330800. Its totient is φ = 47191092480.

The previous prime is 78712163021. The next prime is 78712163087. The reversal of 78712163075 is 57036121787.

It is not a de Polignac number, because 78712163075 - 2¹⁰ = 78712162051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 14823521 + ... + 14828829.

It is an arithmetic number, because the mean of its divisors is an integer number (1075836090).

Almost surely, 2^78712163075 is an apocalyptic number.

78712163075 is a deficient number, since it is larger than the sum of its proper divisors (50388167725).

78712163075 is a wasteful number, since it uses less digits than its factorization.

78712163075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379 (or 5353 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 78712163075 in words is "seventy-eight billion, seven hundred twelve million, one hundred sixty-three thousand, seventy-five".