12606017449 has 2 divisors, whose sum is σ = 12606017450. Its totient is φ = 12606017448.

The previous prime is 12606017441. The next prime is 12606017461. The reversal of 12606017449 is 94471060621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9268875625 + 3337141824 = 96275^2 + 57768^2 .

It is a cyclic number.

It is not a de Polignac number, because 12606017449 - 2³ = 12606017441 is a prime.

It is not a weakly prime, because it can be changed into another prime (12606017441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303008724 + 6303008725.

It is an arithmetic number, because the mean of its divisors is an integer number (6303008725).

Almost surely, 2^12606017449 is an apocalyptic number.

It is an amenable number.

12606017449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606017449 is an equidigital number, since it uses as much as digits as its factorization.

12606017449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 12606017449 in words is "twelve billion, six hundred six million, seventeen thousand, four hundred forty-nine".