13144442393 has 2 divisors, whose sum is σ = 13144442394. Its totient is φ = 13144442392.

The previous prime is 13144442351. The next prime is 13144442411. The reversal of 13144442393 is 39324444131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11044328464 + 2100113929 = 105092^2 + 45827^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144442393 - 2⁶ = 13144442329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13144442593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572221196 + 6572221197.

It is an arithmetic number, because the mean of its divisors is an integer number (6572221197).

Almost surely, 2^13144442393 is an apocalyptic number.

It is an amenable number.

13144442393 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144442393 is an equidigital number, since it uses as much as digits as its factorization.

13144442393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The spelling of 13144442393 in words is "thirteen billion, one hundred forty-four million, four hundred forty-two thousand, three hundred ninety-three".