4144442444413 has 4 divisors (see below), whose sum is σ = 4144776120988. Its totient is φ = 4144108767840.

The previous prime is 4144442444407. The next prime is 4144442444449. The reversal of 4144442444413 is 3144442444414.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2105595438489 + 2038847005924 = 1451067^2 + 1427882^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144442444413 - 2⁵ = 4144442444381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4144442444413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144442444453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166819656 + ... + 166844497.

It is an arithmetic number, because the mean of its divisors is an integer number (1036194030247).

Almost surely, 2^{4144442444413} is an apocalyptic number.

It is an amenable number.

4144442444413 is a deficient number, since it is larger than the sum of its proper divisors (333676575).

4144442444413 is a wasteful number, since it uses less digits than its factorization.

4144442444413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333676574.

The product of its digits is 1572864, while the sum is 43.

Adding to 4144442444413 its reverse (3144442444414), we get a palindrome (7288884888827).

Subtracting from 4144442444413 its reverse (3144442444414), we obtain a palindrome (999999999999).

The spelling of 4144442444413 in words is "four trillion, one hundred forty-four billion, four hundred forty-two million, four hundred forty-four thousand, four hundred thirteen".