12443564593 has 2 divisors, whose sum is σ = 12443564594. Its totient is φ = 12443564592.

The previous prime is 12443564563. The next prime is 12443564611. The reversal of 12443564593 is 39546534421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10636209424 + 1807355169 = 103132^2 + 42513^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443564593 - 2¹³ = 12443556401 is a prime.

It is not a weakly prime, because it can be changed into another prime (12443564513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221782296 + 6221782297.

It is an arithmetic number, because the mean of its divisors is an integer number (6221782297).

Almost surely, 2^12443564593 is an apocalyptic number.

It is an amenable number.

12443564593 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443564593 is an equidigital number, since it uses as much as digits as its factorization.

12443564593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 46.

The spelling of 12443564593 in words is "twelve billion, four hundred forty-three million, five hundred sixty-four thousand, five hundred ninety-three".