6686850810 has 32 divisors (see below), whose sum is σ = 16165593792. Its totient is φ = 1770143360.

The previous prime is 6686850791. The next prime is 6686850817. The reversal of 6686850810 is 180586866.

It is a happy number.

It is a super-2 number, since 2×6686850810² = 89427947510395312200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6686850810.

It is not an unprimeable number, because it can be changed into a prime (6686850817) 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 15 ways as a sum of consecutive naturals, for example, 809376 + ... + 817595.

It is an arithmetic number, because the mean of its divisors is an integer number (505174806).

Almost surely, 2^6686850810 is an apocalyptic number.

6686850810 is an abundant number, since it is smaller than the sum of its proper divisors (9478742982).

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

6686850810 is a wasteful number, since it uses less digits than its factorization.

6686850810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627118.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 6686850810 is about 81773.1668091679. The cubic root of 6686850810 is about 1883.9695447000.

The spelling of 6686850810 in words is "six billion, six hundred eighty-six million, eight hundred fifty thousand, eight hundred ten".