117686656949 has 4 divisors (see below), whose sum is σ = 117694150080. Its totient is φ = 117679163820.

The previous prime is 117686656943. The next prime is 117686656961. The reversal of 117686656949 is 949656686711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117686656949 - 2²⁰ = 117685608373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117686656943) 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, 3722957 + ... + 3754434.

It is an arithmetic number, because the mean of its divisors is an integer number (29423537520).

Almost surely, 2^117686656949 is an apocalyptic number.

It is an amenable number.

117686656949 is a deficient number, since it is larger than the sum of its proper divisors (7493131).

117686656949 is an equidigital number, since it uses as much as digits as its factorization.

117686656949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493130.

The product of its digits is 117573120, while the sum is 68.

The spelling of 117686656949 in words is "one hundred seventeen billion, six hundred eighty-six million, six hundred fifty-six thousand, nine hundred forty-nine".