72747522582 has 48 divisors (see below), whose sum is σ = 178157211840. Its totient is φ = 19691057232.

The previous prime is 72747522571. The next prime is 72747522599. The reversal of 72747522582 is 28522574727.

It is a happy number.

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, 6506008 + ... + 6517179.

It is an arithmetic number, because the mean of its divisors is an integer number (3711608580).

Almost surely, 2^72747522582 is an apocalyptic number.

72747522582 is an abundant number, since it is smaller than the sum of its proper divisors (105409689258).

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

72747522582 is a wasteful number, since it uses less digits than its factorization.

72747522582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13023225 (or 13023218 counting only the distinct ones).

The product of its digits is 4390400, while the sum is 51.

It can be divided in two parts, 727475 and 22582, that added together give a palindrome (750057).

The spelling of 72747522582 in words is "seventy-two billion, seven hundred forty-seven million, five hundred twenty-two thousand, five hundred eighty-two".