23233031728559 has 4 divisors (see below), whose sum is σ = 23235121604904. Its totient is φ = 23230941852216.

The previous prime is 23233031728531. The next prime is 23233031728619. The reversal of 23233031728559 is 95582713033232.

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 23233031728559 - 2²⁰ = 23233030679983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23233031728559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23233031728259) 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, 1044921497 + ... + 1044943730.

It is an arithmetic number, because the mean of its divisors is an integer number (5808780401226).

Almost surely, 2^{23233031728559} is an apocalyptic number.

23233031728559 is a deficient number, since it is larger than the sum of its proper divisors (2089876345).

23233031728559 is a wasteful number, since it uses less digits than its factorization.

23233031728559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089876344.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 23233031728559 in words is "twenty-three trillion, two hundred thirty-three billion, thirty-one million, seven hundred twenty-eight thousand, five hundred fifty-nine".