115844905980 has 36 divisors (see below), whose sum is σ = 351396215352. Its totient is φ = 30891974880.

The previous prime is 115844905963. The next prime is 115844905987. The reversal of 115844905980 is 89509448511.

115844905980 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 4 + 49 + 0 + 598 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115844905987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321791226 + ... + 321791585.

It is an arithmetic number, because the mean of its divisors is an integer number (9761005982).

Almost surely, 2^115844905980 is an apocalyptic number.

115844905980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115844905980 is an abundant number, since it is smaller than the sum of its proper divisors (235551309372).

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

115844905980 is a wasteful number, since it uses less digits than its factorization.

115844905980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643582826 (or 643582821 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 54.

The spelling of 115844905980 in words is "one hundred fifteen billion, eight hundred forty-four million, nine hundred five thousand, nine hundred eighty".