73786644612 has 72 divisors (see below), whose sum is σ = 187264546560. Its totient is φ = 24497003520.

The previous prime is 73786644587. The next prime is 73786644649. The reversal of 73786644612 is 21644668737.

73786644612 is a `hidden beast` number, since 73 + 78 + 66 + 446 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23655589 + ... + 23658707.

It is an arithmetic number, because the mean of its divisors is an integer number (2600896480).

Almost surely, 2^73786644612 is an apocalyptic number.

It is an amenable number.

73786644612 is an abundant number, since it is smaller than the sum of its proper divisors (113477901948).

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

73786644612 is a wasteful number, since it uses less digits than its factorization.

73786644612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553 (or 5548 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 73786644612 in words is "seventy-three billion, seven hundred eighty-six million, six hundred forty-four thousand, six hundred twelve".