12719685893 has 2 divisors, whose sum is σ = 12719685894. Its totient is φ = 12719685892.

The previous prime is 12719685887. The next prime is 12719685947. The reversal of 12719685893 is 39858691721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12698359969 + 21325924 = 112687^2 + 4618^2 .

It is an emirp because it is prime and its reverse (39858691721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12719685893 - 2¹⁴ = 12719669509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12719685863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359842946 + 6359842947.

It is an arithmetic number, because the mean of its divisors is an integer number (6359842947).

Almost surely, 2^12719685893 is an apocalyptic number.

It is an amenable number.

12719685893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12719685893 is an equidigital number, since it uses as much as digits as its factorization.

12719685893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The spelling of 12719685893 in words is "twelve billion, seven hundred nineteen million, six hundred eighty-five thousand, eight hundred ninety-three".