73812292631 has 12 divisors (see below), whose sum is σ = 93669032520. Its totient is φ = 57516071760.

The previous prime is 73812292627. The next prime is 73812292637. The reversal of 73812292631 is 13629221837.

It is a happy number.

It is not a de Polignac number, because 73812292631 - 2² = 73812292627 is a prime.

It is a super-2 number, since 2×73812292631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73812292637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68470976 + ... + 68472053.

It is an arithmetic number, because the mean of its divisors is an integer number (7805752710).

Almost surely, 2^73812292631 is an apocalyptic number.

73812292631 is a deficient number, since it is larger than the sum of its proper divisors (19856739889).

73812292631 is a wasteful number, since it uses less digits than its factorization.

73812292631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136943054 (or 136943047 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The spelling of 73812292631 in words is "seventy-three billion, eight hundred twelve million, two hundred ninety-two thousand, six hundred thirty-one".