72718144775 has 12 divisors (see below), whose sum is σ = 90390978000. Its totient is φ = 58032271680.

The previous prime is 72718144769. The next prime is 72718144777. The reversal of 72718144775 is 57744181727.

It is not a de Polignac number, because 72718144775 - 2⁸ = 72718144519 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72718144777) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3545675 + ... + 3566124.

It is an arithmetic number, because the mean of its divisors is an integer number (7532581500).

Almost surely, 2^72718144775 is an apocalyptic number.

72718144775 is a deficient number, since it is larger than the sum of its proper divisors (17672833225).

72718144775 is a wasteful number, since it uses less digits than its factorization.

72718144775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112218 (or 7112213 counting only the distinct ones).

The product of its digits is 3073280, while the sum is 53.

The spelling of 72718144775 in words is "seventy-two billion, seven hundred eighteen million, one hundred forty-four thousand, seven hundred seventy-five".