72130456524 has 24 divisors (see below), whose sum is σ = 192347884288. Its totient is φ = 20608701840.

The previous prime is 72130456483. The next prime is 72130456547. The reversal of 72130456524 is 42565403127.

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, 429347872 + ... + 429348039.

Almost surely, 2^72130456524 is an apocalyptic number.

It is an amenable number.

72130456524 is an abundant number, since it is smaller than the sum of its proper divisors (120217427764).

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

72130456524 is a wasteful number, since it uses less digits than its factorization.

72130456524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858695925 (or 858695923 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 72130456524 in words is "seventy-two billion, one hundred thirty million, four hundred fifty-six thousand, five hundred twenty-four".