115904418887 has 4 divisors (see below), whose sum is σ = 122004651480. Its totient is φ = 109804186296.

The previous prime is 115904418869. The next prime is 115904418893. The reversal of 115904418887 is 788814409511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115904418887 - 2⁸ = 115904418631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115904418827) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3050116268 + ... + 3050116305.

It is an arithmetic number, because the mean of its divisors is an integer number (30501162870).

Almost surely, 2^115904418887 is an apocalyptic number.

115904418887 is a deficient number, since it is larger than the sum of its proper divisors (6100232593).

115904418887 is an equidigital number, since it uses as much as digits as its factorization.

115904418887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100232592.

The product of its (nonzero) digits is 2580480, while the sum is 56.

The spelling of 115904418887 in words is "one hundred fifteen billion, nine hundred four million, four hundred eighteen thousand, eight hundred eighty-seven".