6689121123 has 8 divisors (see below), whose sum is σ = 8930429200. Its totient is φ = 4453613568.

The previous prime is 6689121113. The next prime is 6689121167. The reversal of 6689121123 is 3211219866.

6689121123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6689121123 - 2¹⁴ = 6689104739 is a prime.

It is a super-2 number, since 2×6689121123² = 89488682796329562258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6689121113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447438 + ... + 1452051.

It is an arithmetic number, because the mean of its divisors is an integer number (1116303650).

Almost surely, 2^6689121123 is an apocalyptic number.

6689121123 is a deficient number, since it is larger than the sum of its proper divisors (2241308077).

6689121123 is a wasteful number, since it uses less digits than its factorization.

6689121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900261.

The product of its digits is 31104, while the sum is 39.

The square root of 6689121123 is about 81787.0474036079. The cubic root of 6689121123 is about 1884.1827350690.

The spelling of 6689121123 in words is "six billion, six hundred eighty-nine million, one hundred twenty-one thousand, one hundred twenty-three".