117390175818 has 16 divisors (see below), whose sum is σ = 238087118016. Its totient is φ = 38578930880.

The previous prime is 117390175817. The next prime is 117390175841. The reversal of 117390175818 is 818571093711.

It is not an unprimeable number, because it can be changed into a prime (117390175817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137781471 + ... + 137782322.

It is an arithmetic number, because the mean of its divisors is an integer number (14880444876).

Almost surely, 2^117390175818 is an apocalyptic number.

117390175818 is an abundant number, since it is smaller than the sum of its proper divisors (120696942198).

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

117390175818 is a wasteful number, since it uses less digits than its factorization.

117390175818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275563869.

The product of its (nonzero) digits is 423360, while the sum is 51.

The spelling of 117390175818 in words is "one hundred seventeen billion, three hundred ninety million, one hundred seventy-five thousand, eight hundred eighteen".