72287438610 has 32 divisors (see below), whose sum is σ = 174855923712. Its totient is φ = 19124864640.

The previous prime is 72287438591. The next prime is 72287438633. The reversal of 72287438610 is 1683478227.

It is a self number, because there is not a number n which added to its sum of digits gives 72287438610.

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, 9482731 + ... + 9490350.

It is an arithmetic number, because the mean of its divisors is an integer number (5464247616).

Almost surely, 2^72287438610 is an apocalyptic number.

72287438610 is an abundant number, since it is smaller than the sum of its proper divisors (102568485102).

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

72287438610 is a wasteful number, since it uses less digits than its factorization.

72287438610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18973218.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 72287438610 in words is "seventy-two billion, two hundred eighty-seven million, four hundred thirty-eight thousand, six hundred ten".