6806689266 has 16 divisors (see below), whose sum is σ = 14660561664. Its totient is φ = 2094365904.

The previous prime is 6806689237. The next prime is 6806689271. The reversal of 6806689266 is 6629866086.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43632546 + ... + 43632701.

It is an arithmetic number, because the mean of its divisors is an integer number (916285104).

Almost surely, 2^6806689266 is an apocalyptic number.

6806689266 is an abundant number, since it is smaller than the sum of its proper divisors (7853872398).

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

6806689266 is a wasteful number, since it uses less digits than its factorization.

6806689266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87265265.

The product of its (nonzero) digits is 8957952, while the sum is 57.

The square root of 6806689266 is about 82502.6621752292. The cubic root of 6806689266 is about 1895.1574991332.

The spelling of 6806689266 in words is "six billion, eight hundred six million, six hundred eighty-nine thousand, two hundred sixty-six".