6489876288 has 224 divisors, whose sum is σ = 20646420480. Its totient is φ = 1759979520.

The previous prime is 6489876271. The next prime is 6489876317. The reversal of 6489876288 is 8826789846.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2206723 + ... + 2209661.

It is an arithmetic number, because the mean of its divisors is an integer number (92171520).

Almost surely, 2^6489876288 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 6489876288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10323210240).

6489876288 is an abundant number, since it is smaller than the sum of its proper divisors (14156544192).

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

6489876288 is a wasteful number, since it uses less digits than its factorization.

6489876288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3035 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 66.

The square root of 6489876288 is about 80559.7684207198. The cubic root of 6489876288 is about 1865.2861809063.

The spelling of 6489876288 in words is "six billion, four hundred eighty-nine million, eight hundred seventy-six thousand, two hundred eighty-eight".