72604725438 has 32 divisors (see below), whose sum is σ = 171676200960. Its totient is φ = 20028889440.

The previous prime is 72604725437. The next prime is 72604725469. The reversal of 72604725438 is 83452740627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72604725433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29803678 + ... + 29806113.

It is an arithmetic number, because the mean of its divisors is an integer number (5364881280).

Almost surely, 2^72604725438 is an apocalyptic number.

72604725438 is an abundant number, since it is smaller than the sum of its proper divisors (99071475522).

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

72604725438 is a wasteful number, since it uses less digits than its factorization.

72604725438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59609832.

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 72604725438 in words is "seventy-two billion, six hundred four million, seven hundred twenty-five thousand, four hundred thirty-eight".