76744630172 has 24 divisors (see below), whose sum is σ = 153822234720. Its totient is φ = 32819204160.

The previous prime is 76744630139. The next prime is 76744630253. The reversal of 76744630172 is 27103644767.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959847 + ... + 2985662.

It is an arithmetic number, because the mean of its divisors is an integer number (6409259780).

Almost surely, 2^76744630172 is an apocalyptic number.

It is an amenable number.

76744630172 is an abundant number, since it is smaller than the sum of its proper divisors (77077604548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76744630172 is a wasteful number, since it uses less digits than its factorization.

76744630172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945981 (or 5945979 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 76744630172 in words is "seventy-six billion, seven hundred forty-four million, six hundred thirty thousand, one hundred seventy-two".