76774134636 has 48 divisors (see below), whose sum is σ = 199487484000. Its totient is φ = 25534365696.

The previous prime is 76774134611. The next prime is 76774134683. The reversal of 76774134636 is 63643147767.

76774134636 is a `hidden beast` number, since 76 + 77 + 41 + 3 + 463 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743125 + ... + 840108.

It is an arithmetic number, because the mean of its divisors is an integer number (4155989250).

Almost surely, 2^76774134636 is an apocalyptic number.

It is an amenable number.

76774134636 is an abundant number, since it is smaller than the sum of its proper divisors (122713349364).

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

76774134636 is a wasteful number, since it uses less digits than its factorization.

76774134636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583695 (or 1583687 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 54.

The spelling of 76774134636 in words is "seventy-six billion, seven hundred seventy-four million, one hundred thirty-four thousand, six hundred thirty-six".