4421688663 has 16 divisors (see below), whose sum is σ = 6919915520. Its totient is φ = 2458390176.

The previous prime is 4421688541. The next prime is 4421688671. The reversal of 4421688663 is 3668861244.

It is not a de Polignac number, because 4421688663 - 2¹² = 4421684567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421688263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844583 + ... + 2846136.

It is an arithmetic number, because the mean of its divisors is an integer number (432494720).

Almost surely, 2^4421688663 is an apocalyptic number.

4421688663 is a deficient number, since it is larger than the sum of its proper divisors (2498226857).

4421688663 is a wasteful number, since it uses less digits than its factorization.

4421688663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690766.

The product of its digits is 1327104, while the sum is 48.

The square root of 4421688663 is about 66495.7792871096. The cubic root of 4421688663 is about 1641.3305510662.

The spelling of 4421688663 in words is "four billion, four hundred twenty-one million, six hundred eighty-eight thousand, six hundred sixty-three".