239823728423 has 4 divisors (see below), whose sum is σ = 239829590448. Its totient is φ = 239817866400.

The previous prime is 239823728399. The next prime is 239823728429. The reversal of 239823728423 is 324827328932.

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 239823728423 - 2²⁴ = 239806951207 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 (239823728429) 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, 2869211 + ... + 2951612.

It is an arithmetic number, because the mean of its divisors is an integer number (59957397612).

Almost surely, 2^239823728423 is an apocalyptic number.

239823728423 is a deficient number, since it is larger than the sum of its proper divisors (5862025).

239823728423 is an equidigital number, since it uses as much as digits as its factorization.

239823728423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862024.

The product of its digits is 6967296, while the sum is 53.

The spelling of 239823728423 in words is "two hundred thirty-nine billion, eight hundred twenty-three million, seven hundred twenty-eight thousand, four hundred twenty-three".