76172646328 has 16 divisors (see below), whose sum is σ = 142853607000. Its totient is φ = 38078351136.

The previous prime is 76172646311. The next prime is 76172646367. The reversal of 76172646328 is 82364627167.

It is a super-2 number, since 2×76172646328² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955798 + ... + 1032421.

Almost surely, 2^76172646328 is an apocalyptic number.

It is an amenable number.

76172646328 is a deficient number, since it is larger than the sum of its proper divisors (66680960672).

76172646328 is a wasteful number, since it uses less digits than its factorization.

76172646328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993014 (or 1993010 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

It can be divided in two parts, 76172 and 646328, that added together give a square (722500 = 850²).

The spelling of 76172646328 in words is "seventy-six billion, one hundred seventy-two million, six hundred forty-six thousand, three hundred twenty-eight".