6378889216 has 112 divisors (see below), whose sum is σ = 14686507584. Its totient is φ = 2713780224.

The previous prime is 6378889199. The next prime is 6378889249. The reversal of 6378889216 is 6129888736.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9920191 + ... + 9920833.

It is an arithmetic number, because the mean of its divisors is an integer number (131129532).

Almost surely, 2^6378889216 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 6378889216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7343253792).

6378889216 is an abundant number, since it is smaller than the sum of its proper divisors (8307618368).

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

6378889216 is an equidigital number, since it uses as much as digits as its factorization.

6378889216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 825 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The square root of 6378889216 is about 79867.9486151986. The cubic root of 6378889216 is about 1854.5918768522.

The spelling of 6378889216 in words is "six billion, three hundred seventy-eight million, eight hundred eighty-nine thousand, two hundred sixteen".