4221362543 has 4 divisors (see below), whose sum is σ = 4234936368. Its totient is φ = 4207788720.

The previous prime is 4221362539. The next prime is 4221362557. The reversal of 4221362543 is 3452631224.

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

It is a cyclic number.

It is not a de Polignac number, because 4221362543 - 2² = 4221362539 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 (4221362843) 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, 6786446 + ... + 6787067.

It is an arithmetic number, because the mean of its divisors is an integer number (1058734092).

Almost surely, 2^4221362543 is an apocalyptic number.

4221362543 is a deficient number, since it is larger than the sum of its proper divisors (13573825).

4221362543 is a wasteful number, since it uses less digits than its factorization.

4221362543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13573824.

The product of its digits is 34560, while the sum is 32.

The square root of 4221362543 is about 64972.0135365990. The cubic root of 4221362543 is about 1616.1594925938.

Adding to 4221362543 its reverse (3452631224), we get a palindrome (7673993767).

The spelling of 4221362543 in words is "four billion, two hundred twenty-one million, three hundred sixty-two thousand, five hundred forty-three".