12946919679 has 6 divisors (see below), whose sum is σ = 18701106216. Its totient is φ = 8631279780.

The previous prime is 12946919677. The next prime is 12946919731. The reversal of 12946919679 is 97691964921.

12946919679 is a `hidden beast` number, since 12 + 9 + 469 + 1 + 96 + 79 = 666.

It is not a de Polignac number, because 12946919679 - 2¹ = 12946919677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946919677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719273307 + ... + 719273324.

It is an arithmetic number, because the mean of its divisors is an integer number (3116851036).

Almost surely, 2^12946919679 is an apocalyptic number.

12946919679 is a deficient number, since it is larger than the sum of its proper divisors (5754186537).

12946919679 is a wasteful number, since it uses less digits than its factorization.

12946919679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438546637 (or 1438546634 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 63.

The spelling of 12946919679 in words is "twelve billion, nine hundred forty-six million, nine hundred nineteen thousand, six hundred seventy-nine".