8041681806 has 16 divisors (see below), whose sum is σ = 16084756224. Its totient is φ = 2680328504.

The previous prime is 8041681801. The next prime is 8041681807. The reversal of 8041681806 is 6081861408.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8041681801) 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 7 ways as a sum of consecutive naturals, for example, 26521 + ... + 129563.

It is an arithmetic number, because the mean of its divisors is an integer number (1005297264).

Almost surely, 2^8041681806 is an apocalyptic number.

8041681806 is an abundant number, since it is smaller than the sum of its proper divisors (8043074418).

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

8041681806 is a wasteful number, since it uses less digits than its factorization.

8041681806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116055.

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 8041681806 is about 89675.4247606333. The cubic root of 8041681806 is about 2003.4674686896.

The spelling of 8041681806 in words is "eight billion, forty-one million, six hundred eighty-one thousand, eight hundred six".