117613256617 has 4 divisors (see below), whose sum is σ = 117615128400. Its totient is φ = 117611384836.

The previous prime is 117613256609. The next prime is 117613256633. The reversal of 117613256617 is 716652316711.

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, and also an emirpimes, since its reverse is a distinct semiprime: 716652316711 = 593 ⋅1208519927.

It is a cyclic number.

It is not a de Polignac number, because 117613256617 - 2³ = 117613256609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117613251617) 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, 838243 + ... + 968440.

It is an arithmetic number, because the mean of its divisors is an integer number (29403782100).

Almost surely, 2^117613256617 is an apocalyptic number.

It is an amenable number.

117613256617 is a deficient number, since it is larger than the sum of its proper divisors (1871783).

117613256617 is an equidigital number, since it uses as much as digits as its factorization.

117613256617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871782.

The product of its digits is 317520, while the sum is 46.

The spelling of 117613256617 in words is "one hundred seventeen billion, six hundred thirteen million, two hundred fifty-six thousand, six hundred seventeen".