72306703040432 has 80 divisors (see below), whose sum is σ = 160527415206912. Its totient is φ = 30907402606080.

The previous prime is 72306703040413. The next prime is 72306703040441. The reversal of 72306703040432 is 23404030760327.

It is a self number, because there is not a number n which added to its sum of digits gives 72306703040432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137024132 + ... + 137550812.

Almost surely, 2^{72306703040432} is an apocalyptic number.

It is an amenable number.

72306703040432 is an abundant number, since it is smaller than the sum of its proper divisors (88220712166480).

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

72306703040432 is a wasteful number, since it uses less digits than its factorization.

72306703040432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529906 (or 529900 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 41.

The spelling of 72306703040432 in words is "seventy-two trillion, three hundred six billion, seven hundred three million, forty thousand, four hundred thirty-two".