12939428613 has 8 divisors (see below), whose sum is σ = 17809106176. Its totient is φ = 8348018400.

The previous prime is 12939428611. The next prime is 12939428627. The reversal of 12939428613 is 31682493921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12939428613 - 2¹ = 12939428611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939428611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69566728 + ... + 69566913.

It is an arithmetic number, because the mean of its divisors is an integer number (2226138272).

Almost surely, 2^12939428613 is an apocalyptic number.

It is an amenable number.

12939428613 is a deficient number, since it is larger than the sum of its proper divisors (4869677563).

12939428613 is a wasteful number, since it uses less digits than its factorization.

12939428613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139133675.

The product of its digits is 559872, while the sum is 48.

The spelling of 12939428613 in words is "twelve billion, nine hundred thirty-nine million, four hundred twenty-eight thousand, six hundred thirteen".