12774594661559 has 2 divisors, whose sum is σ = 12774594661560. Its totient is φ = 12774594661558.

The previous prime is 12774594661553. The next prime is 12774594661571. The reversal of 12774594661559 is 95516649547721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12774594661559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12774594661492 and 12774594661501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12774594661553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387297330779 + 6387297330780.

It is an arithmetic number, because the mean of its divisors is an integer number (6387297330780).

Almost surely, 2^{12774594661559} is an apocalyptic number.

12774594661559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12774594661559 is an equidigital number, since it uses as much as digits as its factorization.

12774594661559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536000, while the sum is 71.

The spelling of 12774594661559 in words is "twelve trillion, seven hundred seventy-four billion, five hundred ninety-four million, six hundred sixty-one thousand, five hundred fifty-nine".