6806439039 has 16 divisors (see below), whose sum is σ = 9615899232. Its totient is φ = 4267680768.

The previous prime is 6806439001. The next prime is 6806439049. The reversal of 6806439039 is 9309346086.

It is not a de Polignac number, because 6806439039 - 2¹⁷ = 6806307967 is a prime.

It is a super-2 number, since 2×6806439039² = 92655224783246487042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806439049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26517 + ... + 119649.

It is an arithmetic number, because the mean of its divisors is an integer number (600993702).

Almost surely, 2^6806439039 is an apocalyptic number.

6806439039 is a deficient number, since it is larger than the sum of its proper divisors (2809460193).

6806439039 is a wasteful number, since it uses less digits than its factorization.

6806439039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94586.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 6806439039 is about 82501.1456829540. The cubic root of 6806439039 is about 1895.1342756360.

The spelling of 6806439039 in words is "six billion, eight hundred six million, four hundred thirty-nine thousand, thirty-nine".