12443564629 has 2 divisors, whose sum is σ = 12443564630. Its totient is φ = 12443564628.

The previous prime is 12443564611. The next prime is 12443564669. The reversal of 12443564629 is 92646534421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11496771729 + 946792900 = 107223^2 + 30770^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443564629 - 2¹⁹ = 12443040341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12443564669) 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, 6221782314 + 6221782315.

It is an arithmetic number, because the mean of its divisors is an integer number (6221782315).

Almost surely, 2^12443564629 is an apocalyptic number.

It is an amenable number.

12443564629 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443564629 is an equidigital number, since it uses as much as digits as its factorization.

12443564629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 46.

The spelling of 12443564629 in words is "twelve billion, four hundred forty-three million, five hundred sixty-four thousand, six hundred twenty-nine".