72765157472 has 24 divisors (see below), whose sum is σ = 163721604816. Its totient is φ = 31185067392.

The previous prime is 72765157459. The next prime is 72765157513. The reversal of 72765157472 is 27475156727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162422003 + ... + 162422450.

It is an arithmetic number, because the mean of its divisors is an integer number (6821733534).

Almost surely, 2^72765157472 is an apocalyptic number.

It is an amenable number.

72765157472 is an abundant number, since it is smaller than the sum of its proper divisors (90956447344).

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

72765157472 is a wasteful number, since it uses less digits than its factorization.

72765157472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324844470 (or 324844462 counting only the distinct ones).

The product of its digits is 5762400, while the sum is 53.

The spelling of 72765157472 in words is "seventy-two billion, seven hundred sixty-five million, one hundred fifty-seven thousand, four hundred seventy-two".