72766844512 has 48 divisors (see below), whose sum is σ = 143866824192. Its totient is φ = 36229486720.

The previous prime is 72766844509. The next prime is 72766844531. The reversal of 72766844512 is 21544866727.

It is a self number, because there is not a number n which added to its sum of digits gives 72766844512.

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, 11571033 + ... + 11577319.

It is an arithmetic number, because the mean of its divisors is an integer number (2997225504).

Almost surely, 2^72766844512 is an apocalyptic number.

It is an amenable number.

72766844512 is a deficient number, since it is larger than the sum of its proper divisors (71099979680).

72766844512 is a wasteful number, since it uses less digits than its factorization.

72766844512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771 (or 7763 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The spelling of 72766844512 in words is "seventy-two billion, seven hundred sixty-six million, eight hundred forty-four thousand, five hundred twelve".