72757556536275 has 144 divisors (see below), whose sum is σ = 140499750815424. Its totient is φ = 35778676976640.

The previous prime is 72757556536163. The next prime is 72757556536303. The reversal of 72757556536275 is 57263565575727.

72757556536275 is a `hidden beast` number, since 7 + 2 + 7 + 5 + 7 + 5 + 565 + 36 + 27 + 5 = 666.

It is not a de Polignac number, because 72757556536275 - 2³⁸ = 72482678629331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13381927857 + ... + 13381933293.

It is an arithmetic number, because the mean of its divisors is an integer number (975692713996).

Almost surely, 2^{72757556536275} is an apocalyptic number.

72757556536275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72757556536275 is a deficient number, since it is larger than the sum of its proper divisors (67742194279149).

72757556536275 is a wasteful number, since it uses less digits than its factorization.

72757556536275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9790 (or 9782 counting only the distinct ones).

The product of its digits is 3241350000, while the sum is 72.

The spelling of 72757556536275 in words is "seventy-two trillion, seven hundred fifty-seven billion, five hundred fifty-six million, five hundred thirty-six thousand, two hundred seventy-five".