12444579239 has 4 divisors (see below), whose sum is σ = 12444832320. Its totient is φ = 12444326160.

The previous prime is 12444579227. The next prime is 12444579293. The reversal of 12444579239 is 93297544421.

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 12444579239 - 2¹⁶ = 12444513703 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 (12444549239) 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, 26327 + ... + 159944.

It is an arithmetic number, because the mean of its divisors is an integer number (3111208080).

Almost surely, 2^12444579239 is an apocalyptic number.

12444579239 is a deficient number, since it is larger than the sum of its proper divisors (253081).

12444579239 is an equidigital number, since it uses as much as digits as its factorization.

12444579239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253080.

The product of its digits is 2177280, while the sum is 50.

The spelling of 12444579239 in words is "twelve billion, four hundred forty-four million, five hundred seventy-nine thousand, two hundred thirty-nine".