4000442441543 has 8 divisors (see below), whose sum is σ = 4055390093568. Its totient is φ = 3945498764544.

The previous prime is 4000442441537. The next prime is 4000442441609. The reversal of 4000442441543 is 3451442440004.

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

It is a cyclic number.

It is not a de Polignac number, because 4000442441543 - 2¹⁸ = 4000442179399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000442441503) 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, 1061855 + ... + 3021327.

It is an arithmetic number, because the mean of its divisors is an integer number (506923761696).

Almost surely, 2^{4000442441543} is an apocalyptic number.

4000442441543 is a deficient number, since it is larger than the sum of its proper divisors (54947652025).

4000442441543 is a wasteful number, since it uses less digits than its factorization.

4000442441543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987513.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 4000442441543 its reverse (3451442440004), we get a palindrome (7451884881547).

The spelling of 4000442441543 in words is "four trillion, four hundred forty-two million, four hundred forty-one thousand, five hundred forty-three".