117906538118 has 4 divisors (see below), whose sum is σ = 176859807180. Its totient is φ = 58953269058.

The previous prime is 117906538069. The next prime is 117906538153. The reversal of 117906538118 is 811835609711.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 29476634528 + ... + 29476634531.

It is an arithmetic number, because the mean of its divisors is an integer number (44214951795).

Almost surely, 2^117906538118 is an apocalyptic number.

117906538118 is a deficient number, since it is larger than the sum of its proper divisors (58953269062).

117906538118 is an equidigital number, since it uses as much as digits as its factorization.

117906538118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58953269061.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 117906538118 in words is "one hundred seventeen billion, nine hundred six million, five hundred thirty-eight thousand, one hundred eighteen".