12663705319 has 2 divisors, whose sum is σ = 12663705320. Its totient is φ = 12663705318.

The previous prime is 12663705317. The next prime is 12663705367. The reversal of 12663705319 is 91350736621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12663705319 - 2¹ = 12663705317 is a prime.

It is a super-2 number, since 2×12663705319² (a number of 21 digits) contains 22 as substring.

Together with 12663705317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12663705317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331852659 + 6331852660.

It is an arithmetic number, because the mean of its divisors is an integer number (6331852660).

Almost surely, 2^12663705319 is an apocalyptic number.

12663705319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663705319 is an equidigital number, since it uses as much as digits as its factorization.

12663705319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 12663705319 in words is "twelve billion, six hundred sixty-three million, seven hundred five thousand, three hundred nineteen".