117854640988 has 48 divisors (see below), whose sum is σ = 237606969600. Its totient is φ = 50102807040.

The previous prime is 117854640977. The next prime is 117854640989. The reversal of 117854640988 is 889046458711.

117854640988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×117854640988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117854640989) 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, 11618823 + ... + 11628961.

It is an arithmetic number, because the mean of its divisors is an integer number (4950145200).

Almost surely, 2^117854640988 is an apocalyptic number.

It is an amenable number.

117854640988 is an abundant number, since it is smaller than the sum of its proper divisors (119752328612).

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

117854640988 is a wasteful number, since it uses less digits than its factorization.

117854640988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13450 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 117854640988 in words is "one hundred seventeen billion, eight hundred fifty-four million, six hundred forty thousand, nine hundred eighty-eight".