13425430020449 has 2 divisors, whose sum is σ = 13425430020450. Its totient is φ = 13425430020448.

The previous prime is 13425430020377. The next prime is 13425430020479. The reversal of 13425430020449 is 94402003452431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12501832138849 + 923597881600 = 3535793^2 + 961040^2 .

It is a cyclic number.

It is not a de Polignac number, because 13425430020449 - 2¹² = 13425430016353 is a prime.

It is not a weakly prime, because it can be changed into another prime (13425430020479) 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, 6712715010224 + 6712715010225.

It is an arithmetic number, because the mean of its divisors is an integer number (6712715010225).

Almost surely, 2^{13425430020449} is an apocalyptic number.

It is an amenable number.

13425430020449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13425430020449 is an equidigital number, since it uses as much as digits as its factorization.

13425430020449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 13425430020449 in words is "thirteen trillion, four hundred twenty-five billion, four hundred thirty million, twenty thousand, four hundred forty-nine".