72796911023 has 4 divisors (see below), whose sum is σ = 72804849288. Its totient is φ = 72788972760.

The previous prime is 72796911013. The next prime is 72796911037. The reversal of 72796911023 is 32011969727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32011969727 = 37 ⋅865188371.

It is a cyclic number.

It is not a de Polignac number, because 72796911023 - 2¹⁶ = 72796845487 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 (72796911013) 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 3 ways as a sum of consecutive naturals, for example, 3955361 + ... + 3973722.

It is an arithmetic number, because the mean of its divisors is an integer number (18201212322).

Almost surely, 2^72796911023 is an apocalyptic number.

72796911023 is a deficient number, since it is larger than the sum of its proper divisors (7938265).

72796911023 is an equidigital number, since it uses as much as digits as its factorization.

72796911023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938264.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 72796911023 in words is "seventy-two billion, seven hundred ninety-six million, nine hundred eleven thousand, twenty-three".