117113512878 has 40 divisors (see below), whose sum is σ = 264158962320. Its totient is φ = 38779300800.

The previous prime is 117113512871. The next prime is 117113512903. The reversal of 117113512878 is 878215311711.

117113512878 is a `hidden beast` number, since 1 + 1 + 7 + 11 + 351 + 287 + 8 = 666.

117113512878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117113512871) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2369323 + ... + 2418246.

It is an arithmetic number, because the mean of its divisors is an integer number (6603974058).

Almost surely, 2^117113512878 is an apocalyptic number.

117113512878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117113512878 is an abundant number, since it is smaller than the sum of its proper divisors (147045449442).

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

117113512878 is a wasteful number, since it uses less digits than its factorization.

117113512878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787734 (or 4787725 counting only the distinct ones).

The product of its digits is 94080, while the sum is 45.

The spelling of 117113512878 in words is "one hundred seventeen billion, one hundred thirteen million, five hundred twelve thousand, eight hundred seventy-eight".