72744413544 has 48 divisors (see below), whose sum is σ = 214926678720. Its totient is φ = 22043761440.

The previous prime is 72744413503. The next prime is 72744413551. The reversal of 72744413544 is 44531444727.

72744413544 is a `hidden beast` number, since 7 + 27 + 44 + 41 + 3 + 544 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72744413544.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45923712 + ... + 45925295.

It is an arithmetic number, because the mean of its divisors is an integer number (4477639140).

Almost surely, 2^72744413544 is an apocalyptic number.

It is an amenable number.

72744413544 is an abundant number, since it is smaller than the sum of its proper divisors (142182265176).

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

72744413544 is a wasteful number, since it uses less digits than its factorization.

72744413544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91849030 (or 91849023 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 45.

The spelling of 72744413544 in words is "seventy-two billion, seven hundred forty-four million, four hundred thirteen thousand, five hundred forty-four".