764122977872 has 40 divisors (see below), whose sum is σ = 1490520195840. Its totient is φ = 379473379200.

The previous prime is 764122977859. The next prime is 764122977901. The reversal of 764122977872 is 278779221467.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18880154 + ... + 18920582.

It is an arithmetic number, because the mean of its divisors is an integer number (37263004896).

Almost surely, 2^764122977872 is an apocalyptic number.

It is an amenable number.

764122977872 is a deficient number, since it is larger than the sum of its proper divisors (726397217968).

764122977872 is a wasteful number, since it uses less digits than its factorization.

764122977872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48411 (or 48405 counting only the distinct ones).

The product of its digits is 33191424, while the sum is 62.

The spelling of 764122977872 in words is "seven hundred sixty-four billion, one hundred twenty-two million, nine hundred seventy-seven thousand, eight hundred seventy-two".