13229942449 has 2 divisors, whose sum is σ = 13229942450. Its totient is φ = 13229942448.

The previous prime is 13229942441. The next prime is 13229942461. The reversal of 13229942449 is 94424992231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11600367025 + 1629575424 = 107705^2 + 40368^2 .

It is a cyclic number.

It is not a de Polignac number, because 13229942449 - 2³ = 13229942441 is a prime.

It is not a weakly prime, because it can be changed into another prime (13229942441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614971224 + 6614971225.

It is an arithmetic number, because the mean of its divisors is an integer number (6614971225).

Almost surely, 2^13229942449 is an apocalyptic number.

It is an amenable number.

13229942449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13229942449 is an equidigital number, since it uses as much as digits as its factorization.

13229942449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The spelling of 13229942449 in words is "thirteen billion, two hundred twenty-nine million, nine hundred forty-two thousand, four hundred forty-nine".