72807472734 has 16 divisors (see below), whose sum is σ = 146903574672. Its totient is φ = 24054386048.

The previous prime is 72807472723. The next prime is 72807472783. The reversal of 72807472734 is 43727470827.

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, 53692149 + ... + 53693504.

It is an arithmetic number, because the mean of its divisors is an integer number (9181473417).

Almost surely, 2^72807472734 is an apocalyptic number.

72807472734 is an abundant number, since it is smaller than the sum of its proper divisors (74096101938).

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

72807472734 is a wasteful number, since it uses less digits than its factorization.

72807472734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107385771.

The product of its (nonzero) digits is 3687936, while the sum is 51.

The spelling of 72807472734 in words is "seventy-two billion, eight hundred seven million, four hundred seventy-two thousand, seven hundred thirty-four".