117642047765 has 16 divisors (see below), whose sum is σ = 154854999936. Its totient is φ = 85085150400.

The previous prime is 117642047749. The next prime is 117642047779. The reversal of 117642047765 is 567740246711.

It is not a de Polignac number, because 117642047765 - 2⁴ = 117642047749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5898737 + ... + 5918646.

It is an arithmetic number, because the mean of its divisors is an integer number (9678437496).

Almost surely, 2^117642047765 is an apocalyptic number.

It is an amenable number.

117642047765 is a deficient number, since it is larger than the sum of its proper divisors (37212952171).

117642047765 is a wasteful number, since it uses less digits than its factorization.

117642047765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11817580.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 117642047765 in words is "one hundred seventeen billion, six hundred forty-two million, forty-seven thousand, seven hundred sixty-five".