76446871688 has 24 divisors (see below), whose sum is σ = 157553213790. Its totient is φ = 34748577600.

The previous prime is 76446871681. The next prime is 76446871691. The reversal of 76446871688 is 88617864467.

It can be written as a sum of positive squares in only one way, i.e., 75033262084 + 1413609604 = 273922^2 + 37598^2 .

It is not an unprimeable number, because it can be changed into a prime (76446871681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39486053 + ... + 39487988.

Almost surely, 2^76446871688 is an apocalyptic number.

It is an amenable number.

76446871688 is an abundant number, since it is smaller than the sum of its proper divisors (81106342102).

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

76446871688 is a wasteful number, since it uses less digits than its factorization.

76446871688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78974069 (or 78974054 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 65.

The spelling of 76446871688 in words is "seventy-six billion, four hundred forty-six million, eight hundred seventy-one thousand, six hundred eighty-eight".