13219397449 has 2 divisors, whose sum is σ = 13219397450. Its totient is φ = 13219397448.

The previous prime is 13219397419. The next prime is 13219397479. The reversal of 13219397449 is 94479391231.

It is a balanced prime because it is at equal distance from previous prime (13219397419) and next prime (13219397479).

It can be written as a sum of positive squares in only one way, i.e., 13080039424 + 139358025 = 114368^2 + 11805^2 .

It is a cyclic number.

It is not a de Polignac number, because 13219397449 - 2⁵ = 13219397417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13219397396 and 13219397405.

It is not a weakly prime, because it can be changed into another prime (13219397419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6609698724 + 6609698725.

It is an arithmetic number, because the mean of its divisors is an integer number (6609698725).

Almost surely, 2^13219397449 is an apocalyptic number.

It is an amenable number.

13219397449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13219397449 is an equidigital number, since it uses as much as digits as its factorization.

13219397449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The spelling of 13219397449 in words is "thirteen billion, two hundred nineteen million, three hundred ninety-seven thousand, four hundred forty-nine".