117918387156922 has 16 divisors (see below), whose sum is σ = 192961406306592. Its totient is φ = 53598143138320.

The previous prime is 117918387156839. The next prime is 117918387156961. The reversal of 117918387156922 is 229651783819711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55113928 + ... + 57213475.

It is an arithmetic number, because the mean of its divisors is an integer number (12060087894162).

Almost surely, 2^{117918387156922} is an apocalyptic number.

117918387156922 is a deficient number, since it is larger than the sum of its proper divisors (75043019149670).

117918387156922 is a wasteful number, since it uses less digits than its factorization.

117918387156922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112375133.

The product of its digits is 91445760, while the sum is 70.

The spelling of 117918387156922 in words is "one hundred seventeen trillion, nine hundred eighteen billion, three hundred eighty-seven million, one hundred fifty-six thousand, nine hundred twenty-two".