117969638617 has 32 divisors (see below), whose sum is σ = 125836001280. Its totient is φ = 110408854080.

The previous prime is 117969638599. The next prime is 117969638623. The reversal of 117969638617 is 716836969711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117969638617 is a prime.

It is a super-3 number, since 3×117969638617³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117969638117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68466718 + ... + 68468440.

It is an arithmetic number, because the mean of its divisors is an integer number (3932375040).

Almost surely, 2^117969638617 is an apocalyptic number.

It is an amenable number.

117969638617 is a deficient number, since it is larger than the sum of its proper divisors (7866362663).

117969638617 is a wasteful number, since it uses less digits than its factorization.

117969638617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253.

The product of its digits is 20575296, while the sum is 64.

The spelling of 117969638617 in words is "one hundred seventeen billion, nine hundred sixty-nine million, six hundred thirty-eight thousand, six hundred seventeen".