115921415272 has 32 divisors (see below), whose sum is σ = 239781172680. Its totient is φ = 52197258240.

The previous prime is 115921415263. The next prime is 115921415303. The reversal of 115921415272 is 272514129511.

It can be written as a sum of positive squares in 4 ways, for example, as 18011250436 + 97910164836 = 134206^2 + 312906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13588773 + ... + 13597300.

Almost surely, 2^115921415272 is an apocalyptic number.

It is an amenable number.

115921415272 is an abundant number, since it is smaller than the sum of its proper divisors (123859757408).

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

115921415272 is a wasteful number, since it uses less digits than its factorization.

115921415272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27186133 (or 27186129 counting only the distinct ones).

The product of its digits is 50400, while the sum is 40.

The spelling of 115921415272 in words is "one hundred fifteen billion, nine hundred twenty-one million, four hundred fifteen thousand, two hundred seventy-two".