12651887719 has 2 divisors, whose sum is σ = 12651887720. Its totient is φ = 12651887718.

The previous prime is 12651887669. The next prime is 12651887783. The reversal of 12651887719 is 91778815621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12651887719 - 2¹⁵ = 12651854951 is a prime.

It is a super-2 number, since 2×12651887719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12651887719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12651887419) 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, 6325943859 + 6325943860.

It is an arithmetic number, because the mean of its divisors is an integer number (6325943860).

Almost surely, 2^12651887719 is an apocalyptic number.

12651887719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12651887719 is an equidigital number, since it uses as much as digits as its factorization.

12651887719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 55.

The spelling of 12651887719 in words is "twelve billion, six hundred fifty-one million, eight hundred eighty-seven thousand, seven hundred nineteen".