6814785808239 has 4 divisors (see below), whose sum is σ = 9086381077656. Its totient is φ = 4543190538824.

The previous prime is 6814785808231. The next prime is 6814785808253. The reversal of 6814785808239 is 9328085874186.

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 6814785808239 - 2³ = 6814785808231 is a prime.

It is a super-2 number, since 2×6814785808239² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6814785808231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135797634704 + ... + 1135797634709.

It is an arithmetic number, because the mean of its divisors is an integer number (2271595269414).

It is a 1-persistent number, because it is pandigital, but 2⋅6814785808239 = 13629571616478 is not.

Almost surely, 2^{6814785808239} is an apocalyptic number.

6814785808239 is a deficient number, since it is larger than the sum of its proper divisors (2271595269417).

6814785808239 is a wasteful number, since it uses less digits than its factorization.

6814785808239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271595269416.

The product of its (nonzero) digits is 185794560, while the sum is 69.

The spelling of 6814785808239 in words is "six trillion, eight hundred fourteen billion, seven hundred eighty-five million, eight hundred eight thousand, two hundred thirty-nine".