72540740611024 has 120 divisors (see below), whose sum is σ = 170712656771040. Its totient is φ = 29736325801728.

The previous prime is 72540740610997. The next prime is 72540740611033. The reversal of 72540740611024 is 42011604704527.

It is a congruent number.

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, 12476442 + ... + 17341945.

It is an arithmetic number, because the mean of its divisors is an integer number (1422605473092).

Almost surely, 2^{72540740611024} is an apocalyptic number.

It is an amenable number.

72540740611024 is an abundant number, since it is smaller than the sum of its proper divisors (98171916160016).

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

72540740611024 is a wasteful number, since it uses less digits than its factorization.

72540740611024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29818545 (or 29818532 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 72540740611024 in words is "seventy-two trillion, five hundred forty billion, seven hundred forty million, six hundred eleven thousand, twenty-four".