115868395044 has 18 divisors (see below), whose sum is σ = 292889554230. Its totient is φ = 38622798336.

The previous prime is 115868395037. The next prime is 115868395063. The reversal of 115868395044 is 440593868511.

It is a happy number.

115868395044 is a `hidden beast` number, since 1 + 1 + 58 + 6 + 83 + 9 + 504 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111709692900 + 4158702144 = 334230^2 + 64488^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1609283229 + ... + 1609283300.

Almost surely, 2^115868395044 is an apocalyptic number.

It is an amenable number.

115868395044 is an abundant number, since it is smaller than the sum of its proper divisors (177021159186).

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

115868395044 is a wasteful number, since it uses less digits than its factorization.

115868395044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218566539 (or 3218566534 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 115868395044 in words is "one hundred fifteen billion, eight hundred sixty-eight million, three hundred ninety-five thousand, forty-four".