13444400017 has 2 divisors, whose sum is σ = 13444400018. Its totient is φ = 13444400016.

The previous prime is 13444399987. The next prime is 13444400051. The reversal of 13444400017 is 71000444431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11139535936 + 2304864081 = 105544^2 + 48009^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444400017 - 2¹¹ = 13444397969 is a prime.

It is not a weakly prime, because it can be changed into another prime (13444400317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722200008 + 6722200009.

It is an arithmetic number, because the mean of its divisors is an integer number (6722200009).

Almost surely, 2^13444400017 is an apocalyptic number.

It is an amenable number.

13444400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444400017 is an equidigital number, since it uses as much as digits as its factorization.

13444400017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 13444400017 its reverse (71000444431), we get a palindrome (84444844448).

The spelling of 13444400017 in words is "thirteen billion, four hundred forty-four million, four hundred thousand, seventeen".