13444340543 has 2 divisors, whose sum is σ = 13444340544. Its totient is φ = 13444340542.

The previous prime is 13444340531. The next prime is 13444340563. The reversal of 13444340543 is 34504344431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13444340543 - 2⁴ = 13444340527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444340563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722170271 + 6722170272.

It is an arithmetic number, because the mean of its divisors is an integer number (6722170272).

Almost surely, 2^13444340543 is an apocalyptic number.

13444340543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444340543 is an equidigital number, since it uses as much as digits as its factorization.

13444340543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 13444340543 its reverse (34504344431), we get a palindrome (47948684974).

The spelling of 13444340543 in words is "thirteen billion, four hundred forty-four million, three hundred forty thousand, five hundred forty-three".