12806783719 has 2 divisors, whose sum is σ = 12806783720. Its totient is φ = 12806783718.

The previous prime is 12806783683. The next prime is 12806783741. The reversal of 12806783719 is 91738760821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12806783719 - 2²⁹ = 12269912807 is a prime.

It is a super-2 number, since 2×12806783719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12806783749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403391859 + 6403391860.

It is an arithmetic number, because the mean of its divisors is an integer number (6403391860).

Almost surely, 2^12806783719 is an apocalyptic number.

12806783719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12806783719 is an equidigital number, since it uses as much as digits as its factorization.

12806783719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 12806783719 in words is "twelve billion, eight hundred six million, seven hundred eighty-three thousand, seven hundred nineteen".