72240515262 has 48 divisors (see below), whose sum is σ = 164218953600. Its totient is φ = 22921358400.

The previous prime is 72240515261. The next prime is 72240515297. The reversal of 72240515262 is 26251504227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72240515261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027137 + ... + 1095212.

It is an arithmetic number, because the mean of its divisors is an integer number (3421228200).

Almost surely, 2^72240515262 is an apocalyptic number.

72240515262 is an abundant number, since it is smaller than the sum of its proper divisors (91978438338).

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

72240515262 is a wasteful number, since it uses less digits than its factorization.

72240515262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122449 (or 2122446 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 72240515262 in words is "seventy-two billion, two hundred forty million, five hundred fifteen thousand, two hundred sixty-two".