12642563359 has 2 divisors, whose sum is σ = 12642563360. Its totient is φ = 12642563358.

The previous prime is 12642563333. The next prime is 12642563419. The reversal of 12642563359 is 95336524621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12642563359 - 2¹¹ = 12642561311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642566359) 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, 6321281679 + 6321281680.

It is an arithmetic number, because the mean of its divisors is an integer number (6321281680).

Almost surely, 2^12642563359 is an apocalyptic number.

12642563359 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642563359 is an equidigital number, since it uses as much as digits as its factorization.

12642563359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 46.

The spelling of 12642563359 in words is "twelve billion, six hundred forty-two million, five hundred sixty-three thousand, three hundred fifty-nine".