6686851348 has 6 divisors (see below), whose sum is σ = 11701989866. Its totient is φ = 3343425672.

The previous prime is 6686851333. The next prime is 6686851397. The reversal of 6686851348 is 8431586866.

It can be written as a sum of positive squares in only one way, i.e., 4801381264 + 1885470084 = 69292^2 + 43422^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835856415 + ... + 835856422.

Almost surely, 2^6686851348 is an apocalyptic number.

It is an amenable number.

6686851348 is a deficient number, since it is larger than the sum of its proper divisors (5015138518).

6686851348 is a wasteful number, since it uses less digits than its factorization.

6686851348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671712841 (or 1671712839 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 55.

The square root of 6686851348 is about 81773.1700987555. The cubic root of 6686851348 is about 1883.9695952258.

The spelling of 6686851348 in words is "six billion, six hundred eighty-six million, eight hundred fifty-one thousand, three hundred forty-eight".