72634977894808 has 32 divisors (see below), whose sum is σ = 155654969817600. Its totient is φ = 31127558517792.

The previous prime is 72634977894781. The next prime is 72634977894821. The reversal of 72634977894808 is 80849877943627.

It is a congruent number.

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, 34761718 + ... + 36791941.

It is an arithmetic number, because the mean of its divisors is an integer number (4864217806800).

Almost surely, 2^{72634977894808} is an apocalyptic number.

It is an amenable number.

72634977894808 is an abundant number, since it is smaller than the sum of its proper divisors (83019991922792).

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

72634977894808 is a wasteful number, since it uses less digits than its factorization.

72634977894808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71571799 (or 71571795 counting only the distinct ones).

The product of its (nonzero) digits is 8193540096, while the sum is 82.

The spelling of 72634977894808 in words is "seventy-two trillion, six hundred thirty-four billion, nine hundred seventy-seven million, eight hundred ninety-four thousand, eight hundred eight".