72720015048 has 48 divisors (see below), whose sum is σ = 208535340780. Its totient is φ = 22814121984.

The previous prime is 72720015029. The next prime is 72720015097. The reversal of 72720015048 is 84051002727.

It can be written as a sum of positive squares in 2 ways, for example, as 65586185604 + 7133829444 = 256098^2 + 84462^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 29704665 + ... + 29707112.

Almost surely, 2^72720015048 is an apocalyptic number.

It is an amenable number.

72720015048 is an abundant number, since it is smaller than the sum of its proper divisors (135815325732).

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

72720015048 is a wasteful number, since it uses less digits than its factorization.

72720015048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59411806 (or 59411799 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 72720015048 in words is "seventy-two billion, seven hundred twenty million, fifteen thousand, forty-eight".