117888888888 has 64 divisors (see below), whose sum is σ = 327530592000. Its totient is φ = 39288921696.

The previous prime is 117888888863. The next prime is 117888888893. The reversal of 117888888888 is 888888888711.

117888888888 is a modest number, since divided by 888888 gives 117888 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1169631 + ... + 1266417.

It is an arithmetic number, because the mean of its divisors is an integer number (5117665500).

Almost surely, 2^117888888888 is an apocalyptic number.

117888888888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

117888888888 is an abundant number, since it is smaller than the sum of its proper divisors (209641703112).

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

117888888888 is a wasteful number, since it uses less digits than its factorization.

117888888888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102441 (or 102431 counting only the distinct ones).

The product of its digits is 939524096, while the sum is 81.

It can be divided in two parts, 11 and 7888888888, that multiplied together give a palindrome (86777777768).

The spelling of 117888888888 in words is "one hundred seventeen billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-eight".