72589990608 has 60 divisors (see below), whose sum is σ = 205433787780. Its totient is φ = 23924786688.

The previous prime is 72589990573. The next prime is 72589990663. The reversal of 72589990608 is 80609998527.

It can be written as a sum of positive squares in 2 ways, for example, as 7467033744 + 65122956864 = 86412^2 + 255192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2819191 + ... + 2844822.

It is an arithmetic number, because the mean of its divisors is an integer number (3423896463).

Almost surely, 2^72589990608 is an apocalyptic number.

It is an amenable number.

72589990608 is an abundant number, since it is smaller than the sum of its proper divisors (132843797172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72589990608 is a wasteful number, since it uses less digits than its factorization.

72589990608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664116 (or 5664107 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 72589990608 in words is "seventy-two billion, five hundred eighty-nine million, nine hundred ninety thousand, six hundred eight".