115722831872 has 36 divisors (see below), whose sum is σ = 231419944665. Its totient is φ = 57853718528.

The previous prime is 115722831871. The next prime is 115722831877. The reversal of 115722831872 is 278138227511.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 86050702336 + 29672129536 = 293344^2 + 172256^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=240544.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115722831871) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15391058 + ... + 15398574.

Almost surely, 2^115722831872 is an apocalyptic number.

It is an amenable number.

115722831872 is a deficient number, since it is larger than the sum of its proper divisors (115697112793).

115722831872 is an frugal number, since it uses more digits than its factorization.

115722831872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15056 (or 7519 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The spelling of 115722831872 in words is "one hundred fifteen billion, seven hundred twenty-two million, eight hundred thirty-one thousand, eight hundred seventy-two".