12929305912 has 16 divisors (see below), whose sum is σ = 24245020800. Its totient is φ = 6463967040.

The previous prime is 12929305903. The next prime is 12929305913. The reversal of 12929305912 is 21950392921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12929305913) 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, 664 + ... + 160807.

It is an arithmetic number, because the mean of its divisors is an integer number (1515313800).

Almost surely, 2^12929305912 is an apocalyptic number.

It is an amenable number.

12929305912 is a deficient number, since it is larger than the sum of its proper divisors (11315714888).

12929305912 is a wasteful number, since it uses less digits than its factorization.

12929305912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171486 (or 171482 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 12929305912 in words is "twelve billion, nine hundred twenty-nine million, three hundred five thousand, nine hundred twelve".