13468349449 has 2 divisors, whose sum is σ = 13468349450. Its totient is φ = 13468349448.

The previous prime is 13468349423. The next prime is 13468349491. The reversal of 13468349449 is 94494386431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13465977849 + 2371600 = 116043^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 13468349449 - 2¹⁷ = 13468218377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13468349449.

It is not a weakly prime, because it can be changed into another prime (13468359449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6734174724 + 6734174725.

It is an arithmetic number, because the mean of its divisors is an integer number (6734174725).

Almost surely, 2^13468349449 is an apocalyptic number.

It is an amenable number.

13468349449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13468349449 is an equidigital number, since it uses as much as digits as its factorization.

13468349449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 55.

The spelling of 13468349449 in words is "thirteen billion, four hundred sixty-eight million, three hundred forty-nine thousand, four hundred forty-nine".