12452656451449 has 2 divisors, whose sum is σ = 12452656451450. Its totient is φ = 12452656451448.

The previous prime is 12452656451383. The next prime is 12452656451471. The reversal of 12452656451449 is 94415465625421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9010611125824 + 3442045325625 = 3001768^2 + 1855275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12452656451449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12452656451393 and 12452656451402.

It is not a weakly prime, because it can be changed into another prime (12452656461449) 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, 6226328225724 + 6226328225725.

It is an arithmetic number, because the mean of its divisors is an integer number (6226328225725).

Almost surely, 2^{12452656451449} is an apocalyptic number.

It is an amenable number.

12452656451449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12452656451449 is an equidigital number, since it uses as much as digits as its factorization.

12452656451449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472000, while the sum is 58.

The spelling of 12452656451449 in words is "twelve trillion, four hundred fifty-two billion, six hundred fifty-six million, four hundred fifty-one thousand, four hundred forty-nine".