13449493361 has 2 divisors, whose sum is σ = 13449493362. Its totient is φ = 13449493360.

The previous prime is 13449493307. The next prime is 13449493381. The reversal of 13449493361 is 16339494431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8474307136 + 4975186225 = 92056^2 + 70535^2 .

It is a cyclic number.

It is not a de Polignac number, because 13449493361 - 2⁶ = 13449493297 is a prime.

It is not a weakly prime, because it can be changed into another prime (13449493381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724746680 + 6724746681.

It is an arithmetic number, because the mean of its divisors is an integer number (6724746681).

Almost surely, 2^13449493361 is an apocalyptic number.

It is an amenable number.

13449493361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449493361 is an equidigital number, since it uses as much as digits as its factorization.

13449493361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 47.

The spelling of 13449493361 in words is "thirteen billion, four hundred forty-nine million, four hundred ninety-three thousand, three hundred sixty-one".