12344123439 has 16 divisors (see below), whose sum is σ = 18297565440. Its totient is φ = 8224926840.

The previous prime is 12344123423. The next prime is 12344123447. The reversal of 12344123439 is 93432144321.

12344123439 is a `hidden beast` number, since 1 + 234 + 412 + 3 + 4 + 3 + 9 = 666.

It is not a de Polignac number, because 12344123439 - 2⁴ = 12344123423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344143439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73897 + ... + 173634.

It is an arithmetic number, because the mean of its divisors is an integer number (1143597840).

Almost surely, 2^12344123439 is an apocalyptic number.

12344123439 is a deficient number, since it is larger than the sum of its proper divisors (5953442001).

12344123439 is a wasteful number, since it uses less digits than its factorization.

12344123439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249387 (or 249381 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The spelling of 12344123439 in words is "twelve billion, three hundred forty-four million, one hundred twenty-three thousand, four hundred thirty-nine".