76644795618 has 32 divisors (see below), whose sum is σ = 170452840320. Its totient is φ = 25528604400.

The previous prime is 76644795583. The next prime is 76644795629. The reversal of 76644795618 is 81659744667.

It is a happy number.

76644795618 is a `hidden beast` number, since 7 + 6 + 6 + 4 + 4 + 7 + 9 + 5 + 618 = 666.

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, 475230 + ... + 615737.

It is an arithmetic number, because the mean of its divisors is an integer number (5326651260).

Almost surely, 2^76644795618 is an apocalyptic number.

76644795618 is an abundant number, since it is smaller than the sum of its proper divisors (93808044702).

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

76644795618 is a wasteful number, since it uses less digits than its factorization.

76644795618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092279 (or 1092273 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 76644795618 in words is "seventy-six billion, six hundred forty-four million, seven hundred ninety-five thousand, six hundred eighteen".