76744630161 has 24 divisors (see below), whose sum is σ = 114508952064. Its totient is φ = 49478186880.

The previous prime is 76744630139. The next prime is 76744630253. The reversal of 76744630161 is 16103644767.

76744630161 is a `hidden beast` number, since 7 + 6 + 7 + 4 + 4 + 630 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 76744630161 - 2⁶ = 76744630097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76744630111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308665 + ... + 498761.

It is an arithmetic number, because the mean of its divisors is an integer number (4771206336).

Almost surely, 2^76744630161 is an apocalyptic number.

It is an amenable number.

76744630161 is a deficient number, since it is larger than the sum of its proper divisors (37764321903).

76744630161 is a wasteful number, since it uses less digits than its factorization.

76744630161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191581 (or 191578 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 76744630161 in words is "seventy-six billion, seven hundred forty-four million, six hundred thirty thousand, one hundred sixty-one".