72516123575 has 12 divisors (see below), whose sum is σ = 102765706800. Its totient is φ = 49725341760.

The previous prime is 72516123527. The next prime is 72516123587. The reversal of 72516123575 is 57532161527.

It is not a de Polignac number, because 72516123575 - 2¹⁶ = 72516058039 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 207188750 + ... + 207189099.

It is an arithmetic number, because the mean of its divisors is an integer number (8563808900).

Almost surely, 2^72516123575 is an apocalyptic number.

72516123575 is a deficient number, since it is larger than the sum of its proper divisors (30249583225).

72516123575 is a wasteful number, since it uses less digits than its factorization.

72516123575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414377866 (or 414377861 counting only the distinct ones).

The product of its digits is 441000, while the sum is 44.

The spelling of 72516123575 in words is "seventy-two billion, five hundred sixteen million, one hundred twenty-three thousand, five hundred seventy-five".