6686873316 has 36 divisors (see below), whose sum is σ = 16990527372. Its totient is φ = 2217406464.

The previous prime is 6686873261. The next prime is 6686873341. The reversal of 6686873316 is 6133786866.

It can be written as a sum of positive squares in 2 ways, for example, as 2530492416 + 4156380900 = 50304^2 + 64470^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474261 + ... + 488156.

Almost surely, 2^6686873316 is an apocalyptic number.

It is an amenable number.

6686873316 is an abundant number, since it is smaller than the sum of its proper divisors (10303654056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6686873316 is a wasteful number, since it uses less digits than its factorization.

6686873316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962620 (or 962615 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 6686873316 is about 81773.3044214308. The cubic root of 6686873316 is about 1883.9716583292.

The spelling of 6686873316 in words is "six billion, six hundred eighty-six million, eight hundred seventy-three thousand, three hundred sixteen".