12408928439 has 16 divisors (see below), whose sum is σ = 13393900800. Its totient is φ = 11453253504.

The previous prime is 12408928379. The next prime is 12408928471. The reversal of 12408928439 is 93482980421.

It is a cyclic number.

It is not a de Polignac number, because 12408928439 - 2²⁴ = 12392151223 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 (12408928489) 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, 405494 + ... + 435020.

It is an arithmetic number, because the mean of its divisors is an integer number (837118800).

Almost surely, 2^12408928439 is an apocalyptic number.

12408928439 is a deficient number, since it is larger than the sum of its proper divisors (984972361).

12408928439 is a wasteful number, since it uses less digits than its factorization.

12408928439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30022.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 12408928439 in words is "twelve billion, four hundred eight million, nine hundred twenty-eight thousand, four hundred thirty-nine".