6806212039 has 4 divisors (see below), whose sum is σ = 7424958600. Its totient is φ = 6187465480.

The previous prime is 6806212031. The next prime is 6806212073. The reversal of 6806212039 is 9302126086.

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 6806212039 - 2³ = 6806212031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6806211989 and 6806212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806212031) 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, 309373264 + ... + 309373285.

It is an arithmetic number, because the mean of its divisors is an integer number (1856239650).

Almost surely, 2^6806212039 is an apocalyptic number.

6806212039 is a deficient number, since it is larger than the sum of its proper divisors (618746561).

6806212039 is a wasteful number, since it uses less digits than its factorization.

6806212039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618746560.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 6806212039 is about 82499.7699330125. The cubic root of 6806212039 is about 1895.1132073378.

The spelling of 6806212039 in words is "six billion, eight hundred six million, two hundred twelve thousand, thirty-nine".