6689332019 has 4 divisors (see below), whose sum is σ = 6691890744. Its totient is φ = 6686773296.

The previous prime is 6689331991. The next prime is 6689332037. The reversal of 6689332019 is 9102339866.

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

It is a cyclic number.

It is not a de Polignac number, because 6689332019 - 2⁸ = 6689331763 is a prime.

It is a super-2 number, since 2×6689332019² = 89494325720837232722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6689332079) 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 3 ways as a sum of consecutive naturals, for example, 1275437 + ... + 1280670.

It is an arithmetic number, because the mean of its divisors is an integer number (1672972686).

Almost surely, 2^6689332019 is an apocalyptic number.

6689332019 is a deficient number, since it is larger than the sum of its proper divisors (2558725).

6689332019 is a wasteful number, since it uses less digits than its factorization.

6689332019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558724.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 6689332019 is about 81788.3366929540. The cubic root of 6689332019 is about 1884.2025364958.

The spelling of 6689332019 in words is "six billion, six hundred eighty-nine million, three hundred thirty-two thousand, nineteen".