72915744140 has 48 divisors (see below), whose sum is σ = 165900807072. Its totient is φ = 26812240896.

The previous prime is 72915744131. The next prime is 72915744179. The reversal of 72915744140 is 4144751927.

It is a junction number, because it is equal to n+sod(n) for n = 72915744091 and 72915744100.

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, 2479079 + ... + 2508318.

It is an arithmetic number, because the mean of its divisors is an integer number (3456266814).

Almost surely, 2^72915744140 is an apocalyptic number.

It is an amenable number.

72915744140 is an abundant number, since it is smaller than the sum of its proper divisors (92985062932).

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

72915744140 is a wasteful number, since it uses less digits than its factorization.

72915744140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987466 (or 4987464 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 72915744140 in words is "seventy-two billion, nine hundred fifteen million, seven hundred forty-four thousand, one hundred forty".