6889446648 has 144 divisors (see below), whose sum is σ = 21746186280. Its totient is φ = 1964704896.

The previous prime is 6889446617. The next prime is 6889446649. The reversal of 6889446648 is 8466449886.

6889446648 is a `hidden beast` number, since 6 + 88 + 94 + 466 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889446649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2266986 + ... + 2270022.

Almost surely, 2^6889446648 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 6889446648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10873093140).

6889446648 is an abundant number, since it is smaller than the sum of its proper divisors (14856739632).

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

6889446648 is a wasteful number, since it uses less digits than its factorization.

6889446648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706 (or 3692 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 63.

The square root of 6889446648 is about 83002.6906069918. The cubic root of 6889446648 is about 1902.8071753047.

The spelling of 6889446648 in words is "six billion, eight hundred eighty-nine million, four hundred forty-six thousand, six hundred forty-eight".