12444789611 has 4 divisors (see below), whose sum is σ = 12445109424. Its totient is φ = 12444469800.

The previous prime is 12444789601. The next prime is 12444789629. The reversal of 12444789611 is 11698744421.

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

It is a cyclic number.

It is not a de Polignac number, because 12444789611 - 2⁶ = 12444789547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444789601) 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 in 3 ways as a sum of consecutive naturals, for example, 91895 + ... + 182576.

It is an arithmetic number, because the mean of its divisors is an integer number (3111277356).

Almost surely, 2^12444789611 is an apocalyptic number.

12444789611 is a deficient number, since it is larger than the sum of its proper divisors (319813).

12444789611 is an equidigital number, since it uses as much as digits as its factorization.

12444789611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319812.

The product of its digits is 387072, while the sum is 47.

The spelling of 12444789611 in words is "twelve billion, four hundred forty-four million, seven hundred eighty-nine thousand, six hundred eleven".