13444432343318 has 48 divisors (see below), whose sum is σ = 21335978781936. Its totient is φ = 6352627195200.

The previous prime is 13444432343317. The next prime is 13444432343351. The reversal of 13444432343318 is 81334323444431.

It is a super-2 number, since 2×13444432343318² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444432343317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49767980 + ... + 50037392.

It is an arithmetic number, because the mean of its divisors is an integer number (444499557957).

Almost surely, 2^{13444432343318} is an apocalyptic number.

13444432343318 is a deficient number, since it is larger than the sum of its proper divisors (7891546438618).

13444432343318 is a wasteful number, since it uses less digits than its factorization.

13444432343318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270029 (or 270006 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 47.

Adding to 13444432343318 its reverse (81334323444431), we get a palindrome (94778755787749).

The spelling of 13444432343318 in words is "thirteen trillion, four hundred forty-four billion, four hundred thirty-two million, three hundred forty-three thousand, three hundred eighteen".