13363220449 has 2 divisors, whose sum is σ = 13363220450. Its totient is φ = 13363220448.

The previous prime is 13363220389. The next prime is 13363220459. The reversal of 13363220449 is 94402236331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7522439824 + 5840780625 = 86732^2 + 76425^2 .

It is a cyclic number.

It is not a de Polignac number, because 13363220449 - 2²⁹ = 12826349537 is a prime.

It is not a weakly prime, because it can be changed into another prime (13363220459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6681610224 + 6681610225.

It is an arithmetic number, because the mean of its divisors is an integer number (6681610225).

Almost surely, 2^13363220449 is an apocalyptic number.

It is an amenable number.

13363220449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13363220449 is an equidigital number, since it uses as much as digits as its factorization.

13363220449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 13363220449 in words is "thirteen billion, three hundred sixty-three million, two hundred twenty thousand, four hundred forty-nine".