12939172119 has 72 divisors (see below), whose sum is σ = 20391374160. Its totient is φ = 8105909760.

The previous prime is 12939172087. The next prime is 12939172133. The reversal of 12939172119 is 91127193921.

It is a happy number.

It is not a de Polignac number, because 12939172119 - 2⁵ = 12939172087 is a prime.

It is a super-2 number, since 2×12939172119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939172619) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 133393479 + ... + 133393575.

It is an arithmetic number, because the mean of its divisors is an integer number (283213530).

Almost surely, 2^12939172119 is an apocalyptic number.

12939172119 is a deficient number, since it is larger than the sum of its proper divisors (7452202041).

12939172119 is an frugal number, since it uses more digits than its factorization.

12939172119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 184 counting only the distinct ones).

The product of its digits is 61236, while the sum is 45.

The spelling of 12939172119 in words is "twelve billion, nine hundred thirty-nine million, one hundred seventy-two thousand, one hundred nineteen".