72767312764 has 6 divisors (see below), whose sum is σ = 127342797344. Its totient is φ = 36383656380.

The previous prime is 72767312731. The next prime is 72767312767. The reversal of 72767312764 is 46721376727.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72767312767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095914092 + ... + 9095914099.

Almost surely, 2^72767312764 is an apocalyptic number.

It is an amenable number.

72767312764 is a deficient number, since it is larger than the sum of its proper divisors (54575484580).

72767312764 is a wasteful number, since it uses less digits than its factorization.

72767312764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191828195 (or 18191828193 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 52.

The spelling of 72767312764 in words is "seventy-two billion, seven hundred sixty-seven million, three hundred twelve thousand, seven hundred sixty-four".