72507408726 has 32 divisors (see below), whose sum is σ = 146089440000. Its totient is φ = 23990107680.

The previous prime is 72507408691. The next prime is 72507408737. The reversal of 72507408726 is 62780470527.

It is a congruent number.

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, 7500336 + ... + 7509996.

It is an arithmetic number, because the mean of its divisors is an integer number (4565295000).

Almost surely, 2^72507408726 is an apocalyptic number.

72507408726 is an abundant number, since it is smaller than the sum of its proper divisors (73582031274).

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

72507408726 is a wasteful number, since it uses less digits than its factorization.

72507408726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18804.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 72507408726 in words is "seventy-two billion, five hundred seven million, four hundred eight thousand, seven hundred twenty-six".