73712458664 has 32 divisors (see below), whose sum is σ = 149062462920. Its totient is φ = 33970849536.

The previous prime is 73712458639. The next prime is 73712458723. The reversal of 73712458664 is 46685421737.

It can be written as a sum of positive squares in 4 ways, for example, as 73463765764 + 248692900 = 271042^2 + 15770^2 .

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, 453059 + ... + 593874.

Almost surely, 2^73712458664 is an apocalyptic number.

It is an amenable number.

73712458664 is an abundant number, since it is smaller than the sum of its proper divisors (75350004256).

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

73712458664 is a wasteful number, since it uses less digits than its factorization.

73712458664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047629 (or 1047625 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 53.

The spelling of 73712458664 in words is "seventy-three billion, seven hundred twelve million, four hundred fifty-eight thousand, six hundred sixty-four".