6889549968 has 120 divisors (see below), whose sum is σ = 22364733248. Its totient is φ = 1939044096.

The previous prime is 6889549951. The next prime is 6889549969. The reversal of 6889549968 is 8699459886.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 6889549896 and 6889549905.

It is not an unprimeable number, because it can be changed into a prime (6889549969) 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 23 ways as a sum of consecutive naturals, for example, 16530 + ... + 118542.

Almost surely, 2^6889549968 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 6889549968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11182366624).

6889549968 is an abundant number, since it is smaller than the sum of its proper divisors (15475183280).

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

6889549968 is a wasteful number, since it uses less digits than its factorization.

6889549968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102101 (or 102092 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 72.

The square root of 6889549968 is about 83003.3129941209. The cubic root of 6889549968 is about 1902.8166872952.

The spelling of 6889549968 in words is "six billion, eight hundred eighty-nine million, five hundred forty-nine thousand, nine hundred sixty-eight".