1444444043413 has 16 divisors (see below), whose sum is σ = 1723459239936. Its totient is φ = 1183651135920.

The previous prime is 1444444043359. The next prime is 1444444043453. The reversal of 1444444043413 is 3143404444441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444444043413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444444043453) 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, 2012181 + ... + 2633962.

It is an arithmetic number, because the mean of its divisors is an integer number (107716202496).

Almost surely, 2^{1444444043413} is an apocalyptic number.

It is an amenable number.

1444444043413 is a deficient number, since it is larger than the sum of its proper divisors (279015196523).

1444444043413 is a wasteful number, since it uses less digits than its factorization.

1444444043413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648104.

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 1444444043413 its reverse (3143404444441), we get a palindrome (4587848487854).

The spelling of 1444444043413 in words is "one trillion, four hundred forty-four billion, four hundred forty-four million, forty-three thousand, four hundred thirteen".