810081518 has 16 divisors (see below), whose sum is σ = 1288314720. Its totient is φ = 380706816.

The previous prime is 810081487. The next prime is 810081527. The reversal of 810081518 is 815180018.

810081518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10655 + ... + 41637.

It is an arithmetic number, because the mean of its divisors is an integer number (80519670).

Almost surely, 2^810081518 is an apocalyptic number.

810081518 is a deficient number, since it is larger than the sum of its proper divisors (478233202).

810081518 is a wasteful number, since it uses less digits than its factorization.

810081518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31771.

The product of its (nonzero) digits is 2560, while the sum is 32.

The square root of 810081518 is about 28461.9310307646. The cubic root of 810081518 is about 932.2010217717.

The spelling of 810081518 in words is "eight hundred ten million, eighty-one thousand, five hundred eighteen".