72613756388 has 12 divisors (see below), whose sum is σ = 133762182960. Its totient is φ = 34395989832.

The previous prime is 72613756349. The next prime is 72613756393. The reversal of 72613756388 is 88365731627.

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, 477722006 + ... + 477722157.

It is an arithmetic number, because the mean of its divisors is an integer number (11146848580).

Almost surely, 2^72613756388 is an apocalyptic number.

It is an amenable number.

72613756388 is a deficient number, since it is larger than the sum of its proper divisors (61148426572).

72613756388 is a wasteful number, since it uses less digits than its factorization.

72613756388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955444186 (or 955444184 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 72613756388 in words is "seventy-two billion, six hundred thirteen million, seven hundred fifty-six thousand, three hundred eighty-eight".