43144442444441 has 8 divisors (see below), whose sum is σ = 46699099751304. Its totient is φ = 39623478572160.

The previous prime is 43144442444429. The next prime is 43144442444461. The reversal of 43144442444441 is 14444424444134.

It can be written as a sum of positive squares in 4 ways, for example, as 844507698841 + 42299934745600 = 918971^2 + 6503840^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43144442444441 is a prime.

It is a super-2 number, since 2×43144442444441² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43144442444401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8423355980 + ... + 8423361101.

It is an arithmetic number, because the mean of its divisors is an integer number (5837387468913).

Almost surely, 2^{43144442444441} is an apocalyptic number.

It is an amenable number.

43144442444441 is a deficient number, since it is larger than the sum of its proper divisors (3554657306863).

43144442444441 is a wasteful number, since it uses less digits than its factorization.

43144442444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16846717291.

The product of its digits is 6291456, while the sum is 47.

Adding to 43144442444441 its reverse (14444424444134), we get a palindrome (57588866888575).

The spelling of 43144442444441 in words is "forty-three trillion, one hundred forty-four billion, four hundred forty-two million, four hundred forty-four thousand, four hundred forty-one".