6718244889 has 4 divisors (see below), whose sum is σ = 8957659856. Its totient is φ = 4478829924.

The previous prime is 6718244873. The next prime is 6718244891. The reversal of 6718244889 is 9884428176.

6718244889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6718244889 - 2⁴ = 6718244873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6718244839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1119707479 + ... + 1119707484.

It is an arithmetic number, because the mean of its divisors is an integer number (2239414964).

Almost surely, 2^6718244889 is an apocalyptic number.

It is an amenable number.

6718244889 is a deficient number, since it is larger than the sum of its proper divisors (2239414967).

6718244889 is a wasteful number, since it uses less digits than its factorization.

6718244889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239414966.

The product of its digits is 6193152, while the sum is 57.

The square root of 6718244889 is about 81964.9003476488. The cubic root of 6718244889 is about 1886.9132905877.

The spelling of 6718244889 in words is "six billion, seven hundred eighteen million, two hundred forty-four thousand, eight hundred eighty-nine".