117478072177 has 4 divisors (see below), whose sum is σ = 117487754100. Its totient is φ = 117468390256.

The previous prime is 117478072163. The next prime is 117478072181. The reversal of 117478072177 is 771270874711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107118089521 + 10359982656 = 327289^2 + 101784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117478072177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117478072577) 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, 4822738 + ... + 4847035.

It is an arithmetic number, because the mean of its divisors is an integer number (29371938525).

Almost surely, 2^117478072177 is an apocalyptic number.

It is an amenable number.

117478072177 is a deficient number, since it is larger than the sum of its proper divisors (9681923).

117478072177 is an equidigital number, since it uses as much as digits as its factorization.

117478072177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9681922.

The product of its (nonzero) digits is 1075648, while the sum is 52.

The spelling of 117478072177 in words is "one hundred seventeen billion, four hundred seventy-eight million, seventy-two thousand, one hundred seventy-seven".