810894954808 has 128 divisors (see below), whose sum is σ = 1751344588800. Its totient is φ = 349434777600.

The previous prime is 810894954803. The next prime is 810894954823. The reversal of 810894954808 is 808459498018.

It is a self number, because there is not a number n which added to its sum of digits gives 810894954808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810894954803) 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 31 ways as a sum of consecutive naturals, for example, 72648748 + ... + 72659908.

It is an arithmetic number, because the mean of its divisors is an integer number (13682379600).

Almost surely, 2^810894954808 is an apocalyptic number.

It is an amenable number.

810894954808 is an abundant number, since it is smaller than the sum of its proper divisors (940449633992).

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

810894954808 is a wasteful number, since it uses less digits than its factorization.

810894954808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141 (or 12137 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 64.

The spelling of 810894954808 in words is "eight hundred ten billion, eight hundred ninety-four million, nine hundred fifty-four thousand, eight hundred eight".