12719685887 has 2 divisors, whose sum is σ = 12719685888. Its totient is φ = 12719685886.

The previous prime is 12719685871. The next prime is 12719685893. The reversal of 12719685887 is 78858691721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12719685887 - 2⁴ = 12719685871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12719685817) by changing a digit.

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 as a sum of consecutive naturals, namely, 6359842943 + 6359842944.

It is an arithmetic number, because the mean of its divisors is an integer number (6359842944).

Almost surely, 2^12719685887 is an apocalyptic number.

12719685887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12719685887 is an equidigital number, since it uses as much as digits as its factorization.

12719685887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 62.

The spelling of 12719685887 in words is "twelve billion, seven hundred nineteen million, six hundred eighty-five thousand, eight hundred eighty-seven".