72533147233 has 16 divisors (see below), whose sum is σ = 76055196672. Its totient is φ = 69088320000.

The previous prime is 72533147177. The next prime is 72533147237. The reversal of 72533147233 is 33274133527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72533147233 is a prime.

It is a super-2 number, since 2×72533147233² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72533147237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295385 + ... + 1350217.

It is an arithmetic number, because the mean of its divisors is an integer number (4753449792).

Almost surely, 2^72533147233 is an apocalyptic number.

It is an amenable number.

72533147233 is a deficient number, since it is larger than the sum of its proper divisors (3522049439).

72533147233 is a wasteful number, since it uses less digits than its factorization.

72533147233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55536.

The product of its digits is 317520, while the sum is 40.

The spelling of 72533147233 in words is "seventy-two billion, five hundred thirty-three million, one hundred forty-seven thousand, two hundred thirty-three".