117765411771 has 32 divisors (see below), whose sum is σ = 192844039680. Its totient is φ = 62390693376.

The previous prime is 117765411763. The next prime is 117765411823. The reversal of 117765411771 is 177114567711.

It is not a de Polignac number, because 117765411771 - 2³ = 117765411763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117765411771.

It is not an unprimeable number, because it can be changed into a prime (117765411571) 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, 2437836 + ... + 2485673.

It is an arithmetic number, because the mean of its divisors is an integer number (6026376240).

Almost surely, 2^117765411771 is an apocalyptic number.

117765411771 is a deficient number, since it is larger than the sum of its proper divisors (75078627909).

117765411771 is a wasteful number, since it uses less digits than its factorization.

117765411771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923603.

The product of its digits is 288120, while the sum is 48.

The spelling of 117765411771 in words is "one hundred seventeen billion, seven hundred sixty-five million, four hundred eleven thousand, seven hundred seventy-one".