72813983628 has 24 divisors (see below), whose sum is σ = 170941626688. Its totient is φ = 24122423376.

The previous prime is 72813983623. The next prime is 72813983701. The reversal of 72813983628 is 82638931827.

It is not an unprimeable number, because it can be changed into a prime (72813983621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18611026 + ... + 18614937.

Almost surely, 2^72813983628 is an apocalyptic number.

It is an amenable number.

72813983628 is an abundant number, since it is smaller than the sum of its proper divisors (98127643060).

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

72813983628 is a wasteful number, since it uses less digits than its factorization.

72813983628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37226133 (or 37226131 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 72813983628 in words is "seventy-two billion, eight hundred thirteen million, nine hundred eighty-three thousand, six hundred twenty-eight".