810982811618 has 16 divisors (see below), whose sum is σ = 1392322024320. Its totient is φ = 347047618176.

The previous prime is 810982811557. The next prime is 810982811621. The reversal of 810982811618 is 816118289018.

It is a self number, because there is not a number n which added to its sum of digits gives 810982811618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43027238 + ... + 43046081.

It is an arithmetic number, because the mean of its divisors is an integer number (87020126520).

Almost surely, 2^810982811618 is an apocalyptic number.

810982811618 is a deficient number, since it is larger than the sum of its proper divisors (581339212702).

810982811618 is a wasteful number, since it uses less digits than its factorization.

810982811618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86074001.

The product of its (nonzero) digits is 442368, while the sum is 53.

The spelling of 810982811618 in words is "eight hundred ten billion, nine hundred eighty-two million, eight hundred eleven thousand, six hundred eighteen".