6684931173 has 4 divisors (see below), whose sum is σ = 8913241568. Its totient is φ = 4456620780.

The previous prime is 6684931151. The next prime is 6684931189. The reversal of 6684931173 is 3711394866.

It is a happy number.

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 not a de Polignac number, because 6684931173 - 2⁹ = 6684930661 is a prime.

It is a super-3 number, since 3×6684931173³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684931133) 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, 1114155193 + ... + 1114155198.

It is an arithmetic number, because the mean of its divisors is an integer number (2228310392).

Almost surely, 2^6684931173 is an apocalyptic number.

It is an amenable number.

6684931173 is a deficient number, since it is larger than the sum of its proper divisors (2228310395).

6684931173 is a wasteful number, since it uses less digits than its factorization.

6684931173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228310394.

The product of its digits is 653184, while the sum is 48.

The square root of 6684931173 is about 81761.4283938337. The cubic root of 6684931173 is about 1883.7892463863.

The spelling of 6684931173 in words is "six billion, six hundred eighty-four million, nine hundred thirty-one thousand, one hundred seventy-three".