12939349986 has 48 divisors (see below), whose sum is σ = 28682035200. Its totient is φ = 4214689920.

The previous prime is 12939349963. The next prime is 12939350027. The reversal of 12939349986 is 68994393921.

12939349986 is a `hidden beast` number, since 129 + 393 + 49 + 9 + 86 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99615 + ... + 189213.

It is an arithmetic number, because the mean of its divisors is an integer number (597542400).

Almost surely, 2^12939349986 is an apocalyptic number.

12939349986 is an abundant number, since it is smaller than the sum of its proper divisors (15742685214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12939349986 is a wasteful number, since it uses less digits than its factorization.

12939349986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89791 (or 89788 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The spelling of 12939349986 in words is "twelve billion, nine hundred thirty-nine million, three hundred forty-nine thousand, nine hundred eighty-six".