72184394613 has 16 divisors (see below), whose sum is σ = 96812998400. Its totient is φ = 47839999680.

The previous prime is 72184394599. The next prime is 72184394617. The reversal of 72184394613 is 31649348127.

It is not a de Polignac number, because 72184394613 - 2³³ = 63594460021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72184394617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374628 + ... + 533586.

It is an arithmetic number, because the mean of its divisors is an integer number (6050812400).

Almost surely, 2^72184394613 is an apocalyptic number.

It is an amenable number.

72184394613 is a deficient number, since it is larger than the sum of its proper divisors (24628603787).

72184394613 is a wasteful number, since it uses less digits than its factorization.

72184394613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159852.

The product of its digits is 870912, while the sum is 48.

The spelling of 72184394613 in words is "seventy-two billion, one hundred eighty-four million, three hundred ninety-four thousand, six hundred thirteen".