12444442305 has 16 divisors (see below), whose sum is σ = 20374157760. Its totient is φ = 6482685888.

The previous prime is 12444442301. The next prime is 12444442393. The reversal of 12444442305 is 50324444421.

It is not a de Polignac number, because 12444442305 - 2² = 12444442301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12444442301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9646210 + ... + 9647499.

It is an arithmetic number, because the mean of its divisors is an integer number (1273384860).

Almost surely, 2^12444442305 is an apocalyptic number.

12444442305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12444442305 is a deficient number, since it is larger than the sum of its proper divisors (7929715455).

12444442305 is a wasteful number, since it uses less digits than its factorization.

12444442305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19293760.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 12444442305 its reverse (50324444421), we get a palindrome (62768886726).

The spelling of 12444442305 in words is "twelve billion, four hundred forty-four million, four hundred forty-two thousand, three hundred five".