12444444442 has 8 divisors (see below), whose sum is σ = 18696251232. Its totient is φ = 6212360700.

The previous prime is 12444444437. The next prime is 12444444449. The reversal of 12444444442 is 24444444421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12444444449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4929184 + ... + 4931707.

It is an arithmetic number, because the mean of its divisors is an integer number (2337031404).

Almost surely, 2^12444444442 is an apocalyptic number.

12444444442 is a deficient number, since it is larger than the sum of its proper divisors (6251806790).

12444444442 is an equidigital number, since it uses as much as digits as its factorization.

12444444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861524.

The product of its digits is 262144, while the sum is 37.

Adding to 12444444442 its reverse (24444444421), we get a palindrome (36888888863).

The spelling of 12444444442 in words is "twelve billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-two".