4221443052543 has 4 divisors (see below), whose sum is σ = 5628590736728. Its totient is φ = 2814295368360.

The previous prime is 4221443052539. The next prime is 4221443052551. The reversal of 4221443052543 is 3452503441224.

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

It is not a de Polignac number, because 4221443052543 - 2² = 4221443052539 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 (4221423052543) 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, 703573842088 + ... + 703573842093.

It is an arithmetic number, because the mean of its divisors is an integer number (1407147684182).

Almost surely, 2^{4221443052543} is an apocalyptic number.

4221443052543 is a deficient number, since it is larger than the sum of its proper divisors (1407147684185).

4221443052543 is a wasteful number, since it uses less digits than its factorization.

4221443052543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407147684184.

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 4221443052543 its reverse (3452503441224), we get a palindrome (7673946493767).

The spelling of 4221443052543 in words is "four trillion, two hundred twenty-one billion, four hundred forty-three million, fifty-two thousand, five hundred forty-three".