4221644363023 has 8 divisors (see below), whose sum is σ = 4235280356000. Its totient is φ = 4208009315328.

The previous prime is 4221644363009. The next prime is 4221644363059. The reversal of 4221644363023 is 3203634461224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221644363023 is a prime.

It is a super-2 number, since 2×4221644363023² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221644363423) 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, 9334678 + ... + 9776476.

It is an arithmetic number, because the mean of its divisors is an integer number (529410044500).

Almost surely, 2^{4221644363023} is an apocalyptic number.

4221644363023 is a deficient number, since it is larger than the sum of its proper divisors (13635992977).

4221644363023 is a wasteful number, since it uses less digits than its factorization.

4221644363023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472641.

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 4221644363023 in words is "four trillion, two hundred twenty-one billion, six hundred forty-four million, three hundred sixty-three thousand, twenty-three".