6211085686 has 16 divisors (see below), whose sum is σ = 10034590608. Its totient is φ = 2866284000.

The previous prime is 6211085681. The next prime is 6211085689. The reversal of 6211085686 is 6865801126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6211085681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393996 + ... + 409456.

It is an arithmetic number, because the mean of its divisors is an integer number (627161913).

Almost surely, 2^6211085686 is an apocalyptic number.

6211085686 is a deficient number, since it is larger than the sum of its proper divisors (3823504922).

6211085686 is a wasteful number, since it uses less digits than its factorization.

6211085686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30927.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 6211085686 is about 78810.4414782711. The cubic root of 6211085686 is about 1838.1848125495.

The spelling of 6211085686 in words is "six billion, two hundred eleven million, eighty-five thousand, six hundred eighty-six".