72733892159 has 4 divisors (see below), whose sum is σ = 72737596680. Its totient is φ = 72730187640.

The previous prime is 72733892137. The next prime is 72733892177. The reversal of 72733892159 is 95129833727.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72733892159 - 2⁸ = 72733891903 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 (72733892359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822652 + ... + 1862129.

It is an arithmetic number, because the mean of its divisors is an integer number (18184399170).

Almost surely, 2^72733892159 is an apocalyptic number.

72733892159 is a deficient number, since it is larger than the sum of its proper divisors (3704521).

72733892159 is a wasteful number, since it uses less digits than its factorization.

72733892159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704520.

The product of its digits is 5715360, while the sum is 56.

The spelling of 72733892159 in words is "seventy-two billion, seven hundred thirty-three million, eight hundred ninety-two thousand, one hundred fifty-nine".