6441063384 has 128 divisors (see below), whose sum is σ = 19454976000. Its totient is φ = 1735945344.

The previous prime is 6441063379. The next prime is 6441063389. The reversal of 6441063384 is 4833601446.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6441063379) and next prime (6441063389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441063389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758667 + ... + 767109.

It is an arithmetic number, because the mean of its divisors is an integer number (151992000).

Almost surely, 2^6441063384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6441063384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9727488000).

6441063384 is an abundant number, since it is smaller than the sum of its proper divisors (13013912616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6441063384 is a wasteful number, since it uses less digits than its factorization.

6441063384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8717 (or 8713 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 6441063384 is about 80256.2357951082. The cubic root of 6441063384 is about 1860.5978908048.

The spelling of 6441063384 in words is "six billion, four hundred forty-one million, sixty-three thousand, three hundred eighty-four".