113518128888 has 64 divisors (see below), whose sum is σ = 317416492800. Its totient is φ = 37588773600.

The previous prime is 113518128887. The next prime is 113518128961. The reversal of 113518128888 is 888821815311.

It is a happy number.

113518128888 is a `hidden beast` number, since 1 + 1 + 351 + 8 + 1 + 288 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113518128887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707606 + ... + 1772837.

It is an arithmetic number, because the mean of its divisors is an integer number (4959632700).

Almost surely, 2^113518128888 is an apocalyptic number.

113518128888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

113518128888 is an abundant number, since it is smaller than the sum of its proper divisors (203898363912).

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

113518128888 is a wasteful number, since it uses less digits than its factorization.

113518128888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480609 (or 3480599 counting only the distinct ones).

The product of its digits is 983040, while the sum is 54.

The spelling of 113518128888 in words is "one hundred thirteen billion, five hundred eighteen million, one hundred twenty-eight thousand, eight hundred eighty-eight".