72750566646775 has 24 divisors (see below), whose sum is σ = 90688416105600. Its totient is φ = 57892319600640.

The previous prime is 72750566646707. The next prime is 72750566646809. The reversal of 72750566646775 is 57764666505727.

It is a de Polignac number, because none of the positive numbers 2^k-72750566646775 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72750566646698 and 72750566646707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41844474 + ... + 43548376.

It is an arithmetic number, because the mean of its divisors is an integer number (3778684004400).

Almost surely, 2^{72750566646775} is an apocalyptic number.

72750566646775 is a deficient number, since it is larger than the sum of its proper divisors (17937849458825).

72750566646775 is a wasteful number, since it uses less digits than its factorization.

72750566646775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712955 (or 1712950 counting only the distinct ones).

The product of its (nonzero) digits is 3111696000, while the sum is 73.

The spelling of 72750566646775 in words is "seventy-two trillion, seven hundred fifty billion, five hundred sixty-six million, six hundred forty-six thousand, seven hundred seventy-five".