72575643415 has 16 divisors (see below), whose sum is σ = 100596828960. Its totient is φ = 49677445120.

The previous prime is 72575643407. The next prime is 72575643421. The reversal of 72575643415 is 51434657527.

It is not a de Polignac number, because 72575643415 - 2³ = 72575643407 is a prime.

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, 38809570 + ... + 38811439.

It is an arithmetic number, because the mean of its divisors is an integer number (6287301810).

Almost surely, 2^72575643415 is an apocalyptic number.

72575643415 is a deficient number, since it is larger than the sum of its proper divisors (28021185545).

72575643415 is a wasteful number, since it uses less digits than its factorization.

72575643415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77621042.

The product of its digits is 3528000, while the sum is 49.

The spelling of 72575643415 in words is "seventy-two billion, five hundred seventy-five million, six hundred forty-three thousand, four hundred fifteen".