13286669449 has 2 divisors, whose sum is σ = 13286669450. Its totient is φ = 13286669448.

The previous prime is 13286669443. The next prime is 13286669479. The reversal of 13286669449 is 94496668231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11471909449 + 1814760000 = 107107^2 + 42600^2 .

It is a cyclic number.

It is not a de Polignac number, because 13286669449 - 2⁷ = 13286669321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13286669393 and 13286669402.

It is not a weakly prime, because it can be changed into another prime (13286669443) 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, 6643334724 + 6643334725.

It is an arithmetic number, because the mean of its divisors is an integer number (6643334725).

Almost surely, 2^13286669449 is an apocalyptic number.

It is an amenable number.

13286669449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13286669449 is an equidigital number, since it uses as much as digits as its factorization.

13286669449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 58.

The spelling of 13286669449 in words is "thirteen billion, two hundred eighty-six million, six hundred sixty-nine thousand, four hundred forty-nine".