72337713240 has 128 divisors (see below), whose sum is σ = 233883599040. Its totient is φ = 17792710656.

The previous prime is 72337713223. The next prime is 72337713263. The reversal of 72337713240 is 4231773327.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2124994 + ... + 2158766.

Almost surely, 2^72337713240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72337713240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116941799520).

72337713240 is an abundant number, since it is smaller than the sum of its proper divisors (161545885800).

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

72337713240 is a wasteful number, since it uses less digits than its factorization.

72337713240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35173 (or 35169 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 39.

The spelling of 72337713240 in words is "seventy-two billion, three hundred thirty-seven million, seven hundred thirteen thousand, two hundred forty".