6881219788589 has 4 divisors (see below), whose sum is σ = 6886231603356. Its totient is φ = 6876207973824.

The previous prime is 6881219788571. The next prime is 6881219788609. The reversal of 6881219788589 is 9858879121886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6255586247689 + 625633540900 = 2501117^2 + 790970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6881219788589 is a prime.

It is a super-2 number, since 2×6881219788589² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6886219788589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505905324 + ... + 2505908069.

It is an arithmetic number, because the mean of its divisors is an integer number (1721557900839).

Almost surely, 2^{6881219788589} is an apocalyptic number.

It is an amenable number.

6881219788589 is a deficient number, since it is larger than the sum of its proper divisors (5011814767).

6881219788589 is a wasteful number, since it uses less digits than its factorization.

6881219788589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011814766.

The product of its digits is 1114767360, while the sum is 80.

The spelling of 6881219788589 in words is "six trillion, eight hundred eighty-one billion, two hundred nineteen million, seven hundred eighty-eight thousand, five hundred eighty-nine".