6423369809 has 4 divisors (see below), whose sum is σ = 6433747440. Its totient is φ = 6412992180.

The previous prime is 6423369763. The next prime is 6423369859. The reversal of 6423369809 is 9089633246.

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 a cyclic number.

It is not a de Polignac number, because 6423369809 - 2⁸ = 6423369553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6423369859) 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, 5187887 + ... + 5189124.

It is an arithmetic number, because the mean of its divisors is an integer number (1608436860).

Almost surely, 2^6423369809 is an apocalyptic number.

It is an amenable number.

6423369809 is a deficient number, since it is larger than the sum of its proper divisors (10377631).

6423369809 is a wasteful number, since it uses less digits than its factorization.

6423369809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10377630.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 6423369809 is about 80145.9282122305. The cubic root of 6423369809 is about 1858.8926434604.

The spelling of 6423369809 in words is "six billion, four hundred twenty-three million, three hundred sixty-nine thousand, eight hundred nine".