764626646046656 has 56 divisors (see below), whose sum is σ = 1558319800424016. Its totient is φ = 371979210608640.

The previous prime is 764626646046649. The next prime is 764626646046691. The reversal of 764626646046656 is 656640646626467.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184096351 + ... + 1184741921.

It is an arithmetic number, because the mean of its divisors is an integer number (27827139293286).

Almost surely, 2^{764626646046656} is an apocalyptic number.

It is an amenable number.

764626646046656 is an abundant number, since it is smaller than the sum of its proper divisors (793693154377360).

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

764626646046656 is a wasteful number, since it uses less digits than its factorization.

764626646046656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145797 (or 1145787 counting only the distinct ones).

The product of its (nonzero) digits is 7524679680, while the sum is 74.

The spelling of 764626646046656 in words is "seven hundred sixty-four trillion, six hundred twenty-six billion, six hundred forty-six million, forty-six thousand, six hundred fifty-six".