12444684369 has 16 divisors (see below), whose sum is σ = 18920426112. Its totient is φ = 7207780608.

The previous prime is 12444684349. The next prime is 12444684379. The reversal of 12444684369 is 96348644421.

It is not a de Polignac number, because 12444684369 - 2¹² = 12444680273 is a prime.

It is a super-2 number, since 2×12444684369² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (12444684349) 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, 9384469 + ... + 9385794.

It is an arithmetic number, because the mean of its divisors is an integer number (1182526632).

Almost surely, 2^12444684369 is an apocalyptic number.

It is an amenable number.

12444684369 is a deficient number, since it is larger than the sum of its proper divisors (6475741743).

12444684369 is a wasteful number, since it uses less digits than its factorization.

12444684369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18770296.

The product of its digits is 3981312, while the sum is 51.

The spelling of 12444684369 in words is "twelve billion, four hundred forty-four million, six hundred eighty-four thousand, three hundred sixty-nine".