13444422469 has 2 divisors, whose sum is σ = 13444422470. Its totient is φ = 13444422468.

The previous prime is 13444422373. The next prime is 13444422517. The reversal of 13444422469 is 96422444431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13216261444 + 228161025 = 114962^2 + 15105^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444422469 - 2¹⁷ = 13444291397 is a prime.

It is a super-2 number, since 2×13444422469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444422869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722211234 + 6722211235.

It is an arithmetic number, because the mean of its divisors is an integer number (6722211235).

Almost surely, 2^13444422469 is an apocalyptic number.

It is an amenable number.

13444422469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444422469 is an equidigital number, since it uses as much as digits as its factorization.

13444422469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 43.

The spelling of 13444422469 in words is "thirteen billion, four hundred forty-four million, four hundred twenty-two thousand, four hundred sixty-nine".