12644426035 has 16 divisors (see below), whose sum is σ = 15548897952. Its totient is φ = 9865324800.

The previous prime is 12644426029. The next prime is 12644426051. The reversal of 12644426035 is 53062444621.

12644426035 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12644426035 - 2⁷ = 12644425907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12644425985 and 12644426003.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 673597 + ... + 692113.

It is an arithmetic number, because the mean of its divisors is an integer number (971806122).

Almost surely, 2^12644426035 is an apocalyptic number.

12644426035 is a deficient number, since it is larger than the sum of its proper divisors (2904471917).

12644426035 is a wasteful number, since it uses less digits than its factorization.

12644426035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21894.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 12644426035 in words is "twelve billion, six hundred forty-four million, four hundred twenty-six thousand, thirty-five".