4221623703563 has 6 divisors (see below), whose sum is σ = 4910868389916. Its totient is φ = 3618534603012.

The previous prime is 4221623703511. The next prime is 4221623703601. The reversal of 4221623703563 is 3653073261224.

4221623703563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4221623703563 - 2²⁴ = 4221606926347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221623703163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43077792845 + ... + 43077792942.

It is an arithmetic number, because the mean of its divisors is an integer number (818478064986).

Almost surely, 2^{4221623703563} is an apocalyptic number.

4221623703563 is a deficient number, since it is larger than the sum of its proper divisors (689244686353).

4221623703563 is an equidigital number, since it uses as much as digits as its factorization.

4221623703563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86155585801 (or 86155585794 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 44.

Adding to 4221623703563 its reverse (3653073261224), we get a palindrome (7874696964787).

The spelling of 4221623703563 in words is "four trillion, two hundred twenty-one billion, six hundred twenty-three million, seven hundred three thousand, five hundred sixty-three".