2543882243729 has 2 divisors, whose sum is σ = 2543882243730. Its totient is φ = 2543882243728.

The previous prime is 2543882243689. The next prime is 2543882243797. The reversal of 2543882243729 is 9273422883452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1832815054225 + 711067189504 = 1353815^2 + 843248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543882243729 - 2²⁸ = 2543613808273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2543882243429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271941121864 + 1271941121865.

It is an arithmetic number, because the mean of its divisors is an integer number (1271941121865).

Almost surely, 2^{2543882243729} is an apocalyptic number.

It is an amenable number.

2543882243729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543882243729 is an equidigital number, since it uses as much as digits as its factorization.

2543882243729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46448640, while the sum is 59.

The spelling of 2543882243729 in words is "two trillion, five hundred forty-three billion, eight hundred eighty-two million, two hundred forty-three thousand, seven hundred twenty-nine".