72159373573 has 24 divisors (see below), whose sum is σ = 88385385600. Its totient is φ = 58577698368.

The previous prime is 72159373571. The next prime is 72159373577. The reversal of 72159373573 is 37537395127.

It is a happy number.

It is not a de Polignac number, because 72159373573 - 2¹ = 72159373571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72159373573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72159373571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3648036 + ... + 3667762.

It is an arithmetic number, because the mean of its divisors is an integer number (3682724400).

Almost surely, 2^72159373573 is an apocalyptic number.

It is an amenable number.

72159373573 is a deficient number, since it is larger than the sum of its proper divisors (16226012027).

72159373573 is a wasteful number, since it uses less digits than its factorization.

72159373573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23689 (or 23682 counting only the distinct ones).

The product of its digits is 4167450, while the sum is 52.

The spelling of 72159373573 in words is "seventy-two billion, one hundred fifty-nine million, three hundred seventy-three thousand, five hundred seventy-three".