115891273922 has 6 divisors (see below), whose sum is σ = 173837633043. Its totient is φ = 57945396242.

The previous prime is 115891273919. The next prime is 115891273931. The reversal of 115891273922 is 229372198511.

It can be written as a sum of positive squares in only one way, i.e., 57945636961 + 57945636961 = 240719^2 + 240719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=240719.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 361079 + ... + 601797.

Almost surely, 2^115891273922 is an apocalyptic number.

115891273922 is a deficient number, since it is larger than the sum of its proper divisors (57946359121).

115891273922 is an frugal number, since it uses more digits than its factorization.

115891273922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481440 (or 240721 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

Multiplying 115891273922 by its sum of digits (50), we get a square (5794563696100 = 2407190²).

The spelling of 115891273922 in words is "one hundred fifteen billion, eight hundred ninety-one million, two hundred seventy-three thousand, nine hundred twenty-two".