117108928924691 has 4 divisors (see below), whose sum is σ = 127755195190584. Its totient is φ = 106462662658800.

The previous prime is 117108928924657. The next prime is 117108928924709. The reversal of 117108928924691 is 196429829801711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117108928924691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117108928924601) 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, 5323133132930 + ... + 5323133132951.

It is an arithmetic number, because the mean of its divisors is an integer number (31938798797646).

Almost surely, 2^{117108928924691} is an apocalyptic number.

117108928924691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117108928924691 is a deficient number, since it is larger than the sum of its proper divisors (10646266265893).

117108928924691 is a wasteful number, since it uses less digits than its factorization.

117108928924691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646266265892.

The product of its (nonzero) digits is 31352832, while the sum is 68.

The spelling of 117108928924691 in words is "one hundred seventeen trillion, one hundred eight billion, nine hundred twenty-eight million, nine hundred twenty-four thousand, six hundred ninety-one".