12445024223447 has 2 divisors, whose sum is σ = 12445024223448. Its totient is φ = 12445024223446.

The previous prime is 12445024223407. The next prime is 12445024223501. The reversal of 12445024223447 is 74432242054421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12445024223447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12445024223398 and 12445024223407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445024223407) 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, 6222512111723 + 6222512111724.

It is an arithmetic number, because the mean of its divisors is an integer number (6222512111724).

Almost surely, 2^{12445024223447} is an apocalyptic number.

12445024223447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445024223447 is an equidigital number, since it uses as much as digits as its factorization.

12445024223447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 44.

Adding to 12445024223447 its reverse (74432242054421), we get a palindrome (86877266277868).

The spelling of 12445024223447 in words is "twelve trillion, four hundred forty-five billion, twenty-four million, two hundred twenty-three thousand, four hundred forty-seven".