6889999488 has 256 divisors, whose sum is σ = 20398694400. Its totient is φ = 2051481600.

The previous prime is 6889999483. The next prime is 6889999559. The reversal of 6889999488 is 8849999886.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6889999483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9272845 + ... + 9273587.

It is an arithmetic number, because the mean of its divisors is an integer number (79682400).

Almost surely, 2^6889999488 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 6889999488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10199347200).

6889999488 is an abundant number, since it is smaller than the sum of its proper divisors (13508694912).

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

6889999488 is a wasteful number, since it uses less digits than its factorization.

6889999488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 839 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 78.

The square root of 6889999488 is about 83006.0207936750. The cubic root of 6889999488 is about 1902.8580705282.

The spelling of 6889999488 in words is "six billion, eight hundred eighty-nine million, nine hundred ninety-nine thousand, four hundred eighty-eight".