78972606475 has 24 divisors (see below), whose sum is σ = 112483613088. Its totient is φ = 53877734400.

The previous prime is 78972606437. The next prime is 78972606539. The reversal of 78972606475 is 57460627987.

It is a happy number.

It is not a de Polignac number, because 78972606475 - 2¹⁹ = 78972082187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1110886 + ... + 1179835.

It is an arithmetic number, because the mean of its divisors is an integer number (4686817212).

Almost surely, 2^78972606475 is an apocalyptic number.

78972606475 is a deficient number, since it is larger than the sum of its proper divisors (33511006613).

78972606475 is a wasteful number, since it uses less digits than its factorization.

78972606475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290935 (or 2290930 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 78972606475 in words is "seventy-eight billion, nine hundred seventy-two million, six hundred six thousand, four hundred seventy-five".