72704111768 has 32 divisors (see below), whose sum is σ = 140752080000. Its totient is φ = 35170798080.

The previous prime is 72704111749. The next prime is 72704111783. The reversal of 72704111768 is 86711140727.

It is a Cunningham number, because it is equal to 269637²-1.

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, 1044848 + ... + 1112256.

It is an arithmetic number, because the mean of its divisors is an integer number (4398502500).

Almost surely, 2^72704111768 is an apocalyptic number.

It is an amenable number.

72704111768 is a deficient number, since it is larger than the sum of its proper divisors (68047968232).

72704111768 is a wasteful number, since it uses less digits than its factorization.

72704111768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71795 (or 71791 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 44.

The spelling of 72704111768 in words is "seventy-two billion, seven hundred four million, one hundred eleven thousand, seven hundred sixty-eight".