12435203449 has 4 divisors (see below), whose sum is σ = 12451544820. Its totient is φ = 12418862080.

The previous prime is 12435203359. The next prime is 12435203479. The reversal of 12435203449 is 94430253421.

12435203449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47513449 + 12387690000 = 6893^2 + 111300^2 .

It is a cyclic number.

It is not a de Polignac number, because 12435203449 - 2¹³ = 12435195257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12435203479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8169544 + ... + 8171065.

It is an arithmetic number, because the mean of its divisors is an integer number (3112886205).

Almost surely, 2^12435203449 is an apocalyptic number.

It is an amenable number.

12435203449 is a deficient number, since it is larger than the sum of its proper divisors (16341371).

12435203449 is an equidigital number, since it uses as much as digits as its factorization.

12435203449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16341370.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 12435203449 in words is "twelve billion, four hundred thirty-five million, two hundred three thousand, four hundred forty-nine".