12939428612 has 12 divisors (see below), whose sum is σ = 24702545616. Its totient is φ = 5881558440.

The previous prime is 12939428611. The next prime is 12939428627. The reversal of 12939428612 is 21682493921.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 147038918 + ... + 147039005.

It is an arithmetic number, because the mean of its divisors is an integer number (2058545468).

Almost surely, 2^12939428612 is an apocalyptic number.

It is an amenable number.

12939428612 is a deficient number, since it is larger than the sum of its proper divisors (11763117004).

12939428612 is a wasteful number, since it uses less digits than its factorization.

12939428612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294077938 (or 294077936 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The spelling of 12939428612 in words is "twelve billion, nine hundred thirty-nine million, four hundred twenty-eight thousand, six hundred twelve".