76685316128 has 24 divisors (see below), whose sum is σ = 151935845292. Its totient is φ = 38098434816.

The previous prime is 76685316091. The next prime is 76685316131. The reversal of 76685316128 is 82161358667.

It can be written as a sum of positive squares in 2 ways, for example, as 74579240464 + 2106075664 = 273092^2 + 45892^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76685316128.

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, 7626875 + ... + 7636922.

Almost surely, 2^76685316128 is an apocalyptic number.

It is an amenable number.

76685316128 is a deficient number, since it is larger than the sum of its proper divisors (75250529164).

76685316128 is a wasteful number, since it uses less digits than its factorization.

76685316128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15263964 (or 15263956 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 76685316128 in words is "seventy-six billion, six hundred eighty-five million, three hundred sixteen thousand, one hundred twenty-eight".