12939172118 has 8 divisors (see below), whose sum is σ = 19737720360. Its totient is φ = 6359932000.

The previous prime is 12939172087. The next prime is 12939172133. The reversal of 12939172118 is 81127193921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54826883 + ... + 54827118.

It is an arithmetic number, because the mean of its divisors is an integer number (2467215045).

Almost surely, 2^12939172118 is an apocalyptic number.

12939172118 is a deficient number, since it is larger than the sum of its proper divisors (6798548242).

12939172118 is a wasteful number, since it uses less digits than its factorization.

12939172118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109654062.

The product of its digits is 54432, while the sum is 44.

The spelling of 12939172118 in words is "twelve billion, nine hundred thirty-nine million, one hundred seventy-two thousand, one hundred eighteen".