117105609988 has 12 divisors (see below), whose sum is σ = 204942760092. Its totient is φ = 58550535680.

The previous prime is 117105609979. The next prime is 117105609989. The reversal of 117105609988 is 889906501711.

It can be written as a sum of positive squares in 2 ways, for example, as 45555779844 + 71549830144 = 213438^2 + 267488^2 .

It is not an unprimeable number, because it can be changed into a prime (117105609989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448453 + ... + 659788.

It is an arithmetic number, because the mean of its divisors is an integer number (17078563341).

Almost surely, 2^117105609988 is an apocalyptic number.

It is an amenable number.

117105609988 is a deficient number, since it is larger than the sum of its proper divisors (87837150104).

117105609988 is a wasteful number, since it uses less digits than its factorization.

117105609988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134662 (or 1134660 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 55.

The spelling of 117105609988 in words is "one hundred seventeen billion, one hundred five million, six hundred nine thousand, nine hundred eighty-eight".