12990458439 has 24 divisors (see below), whose sum is σ = 21504337920. Its totient is φ = 7402429008.

The previous prime is 12990458431. The next prime is 12990458477. The reversal of 12990458439 is 93485409921.

12990458439 is a `hidden beast` number, since 1 + 29 + 9 + 0 + 4 + 584 + 39 = 666.

It is not a de Polignac number, because 12990458439 - 2³ = 12990458431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990458431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264567 + ... + 309800.

It is an arithmetic number, because the mean of its divisors is an integer number (896014080).

Almost surely, 2^12990458439 is an apocalyptic number.

12990458439 is a deficient number, since it is larger than the sum of its proper divisors (8513879481).

12990458439 is a wasteful number, since it uses less digits than its factorization.

12990458439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574739 (or 574736 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 12990458439 in words is "twelve billion, nine hundred ninety million, four hundred fifty-eight thousand, four hundred thirty-nine".