117831940856 has 16 divisors (see below), whose sum is σ = 252497016240. Its totient is φ = 50499403200.

The previous prime is 117831940841. The next prime is 117831940861. The reversal of 117831940856 is 658049138711.

117831940856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 117831940798 and 117831940807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052070845 + ... + 1052070956.

It is an arithmetic number, because the mean of its divisors is an integer number (15781063515).

Almost surely, 2^117831940856 is an apocalyptic number.

It is an amenable number.

117831940856 is an abundant number, since it is smaller than the sum of its proper divisors (134665075384).

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

117831940856 is a wasteful number, since it uses less digits than its factorization.

117831940856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104141814 (or 2104141810 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 117831940856 in words is "one hundred seventeen billion, eight hundred thirty-one million, nine hundred forty thousand, eight hundred fifty-six".