72530771375 has 16 divisors (see below), whose sum is σ = 92623488672. Its totient is φ = 56675203200.

The previous prime is 72530771359. The next prime is 72530771381. The reversal of 72530771375 is 57317703527.

It is not a de Polignac number, because 72530771375 - 2⁴ = 72530771359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6741674 + ... + 6752423.

It is an arithmetic number, because the mean of its divisors is an integer number (5788968042).

Almost surely, 2^72530771375 is an apocalyptic number.

72530771375 is a deficient number, since it is larger than the sum of its proper divisors (20092717297).

72530771375 is a wasteful number, since it uses less digits than its factorization.

72530771375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494155 (or 13494145 counting only the distinct ones).

The product of its (nonzero) digits is 1080450, while the sum is 47.

The spelling of 72530771375 in words is "seventy-two billion, five hundred thirty million, seven hundred seventy-one thousand, three hundred seventy-five".