4221377863 has 2 divisors, whose sum is σ = 4221377864. Its totient is φ = 4221377862.

The previous prime is 4221377861. The next prime is 4221377893. The reversal of 4221377863 is 3687731224.

4221377863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221377863 - 2¹ = 4221377861 is a prime.

Together with 4221377861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221377861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110688931 + 2110688932.

It is an arithmetic number, because the mean of its divisors is an integer number (2110688932).

Almost surely, 2^4221377863 is an apocalyptic number.

4221377863 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221377863 is an equidigital number, since it uses as much as digits as its factorization.

4221377863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 43.

The square root of 4221377863 is about 64972.1314334077. The cubic root of 4221377863 is about 1616.1614476919.

The spelling of 4221377863 in words is "four billion, two hundred twenty-one million, three hundred seventy-seven thousand, eight hundred sixty-three".