818159892810 has 128 divisors (see below), whose sum is σ = 2233042801920. Its totient is φ = 190183458816.

The previous prime is 818159892751. The next prime is 818159892821. The reversal of 818159892810 is 18298951818.

It is a super-2 number, since 2×818159892810² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2142952 + ... + 2495708.

It is an arithmetic number, because the mean of its divisors is an integer number (17445646890).

Almost surely, 2^818159892810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818159892810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116521400960).

818159892810 is an abundant number, since it is smaller than the sum of its proper divisors (1414882909110).

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

818159892810 is a wasteful number, since it uses less digits than its factorization.

818159892810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353112.

The product of its (nonzero) digits is 3317760, while the sum is 60.

The spelling of 818159892810 in words is "eight hundred eighteen billion, one hundred fifty-nine million, eight hundred ninety-two thousand, eight hundred ten".