72387902500 has 45 divisors (see below), whose sum is σ = 158327288581. Its totient is φ = 28949780000.

The previous prime is 72387902441. The next prime is 72387902567. The reversal of 72387902500 is 520978327.

The square root of 72387902500 is 269050.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 65089275876 + 7298626624 = 255126^2 + 85432^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13449810 + ... + 13455190.

Almost surely, 2^72387902500 is an apocalyptic number.

72387902500 is the 269050-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72387902500

72387902500 is an abundant number, since it is smaller than the sum of its proper divisors (85939386081).

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

72387902500 is an frugal number, since it uses more digits than its factorization.

72387902500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 72387902500 in words is "seventy-two billion, three hundred eighty-seven million, nine hundred two thousand, five hundred".