72560712257 has 16 divisors (see below), whose sum is σ = 79804956672. Its totient is φ = 65424759120.

The previous prime is 72560712241. The next prime is 72560712269. The reversal of 72560712257 is 75221706527.

It is a cyclic number.

It is not a de Polignac number, because 72560712257 - 2⁴ = 72560712241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72560715257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6346448 + ... + 6357870.

It is an arithmetic number, because the mean of its divisors is an integer number (4987809792).

Almost surely, 2^72560712257 is an apocalyptic number.

It is an amenable number.

72560712257 is a deficient number, since it is larger than the sum of its proper divisors (7244244415).

72560712257 is a wasteful number, since it uses less digits than its factorization.

72560712257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16108.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 72560712257 in words is "seventy-two billion, five hundred sixty million, seven hundred twelve thousand, two hundred fifty-seven".