13443144044 has 72 divisors (see below), whose sum is σ = 26151417600. Its totient is φ = 6041772000.

The previous prime is 13443144037. The next prime is 13443144049. The reversal of 13443144044 is 44044134431.

It is a self number, because there is not a number n which added to its sum of digits gives 13443144044.

It is not an unprimeable number, because it can be changed into a prime (13443144049) 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, 30621977 + ... + 30622415.

Almost surely, 2^13443144044 is an apocalyptic number.

It is an amenable number.

13443144044 is a deficient number, since it is larger than the sum of its proper divisors (12708273556).

13443144044 is a wasteful number, since it uses less digits than its factorization.

13443144044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 13443144044 its reverse (44044134431), we get a palindrome (57487278475).

The spelling of 13443144044 in words is "thirteen billion, four hundred forty-three million, one hundred forty-four thousand, forty-four".