76561615612 has 12 divisors (see below), whose sum is σ = 134003325456. Its totient is φ = 38274951200.

The previous prime is 76561615601. The next prime is 76561615657. The reversal of 76561615612 is 21651616567.

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, 1434673 + ... + 1487080.

It is an arithmetic number, because the mean of its divisors is an integer number (11166943788).

Almost surely, 2^76561615612 is an apocalyptic number.

It is an amenable number.

76561615612 is a deficient number, since it is larger than the sum of its proper divisors (57441709844).

76561615612 is a wasteful number, since it uses less digits than its factorization.

76561615612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928308 (or 2928306 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The spelling of 76561615612 in words is "seventy-six billion, five hundred sixty-one million, six hundred fifteen thousand, six hundred twelve".