818233332818 has 16 divisors (see below), whose sum is σ = 1339857780480. Its totient is φ = 371665767600.

The previous prime is 818233332767. The next prime is 818233332821.

It is a happy number.

818233332818 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×818233332818² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12891353 + ... + 12954668.

It is an arithmetic number, because the mean of its divisors is an integer number (83741111280).

Almost surely, 2^818233332818 is an apocalyptic number.

818233332818 is a deficient number, since it is larger than the sum of its proper divisors (521624447662).

818233332818 is a wasteful number, since it uses less digits than its factorization.

818233332818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25847473.

The product of its digits is 1327104, while the sum is 50.

The spelling of 818233332818 in words is "eight hundred eighteen billion, two hundred thirty-three million, three hundred thirty-two thousand, eight hundred eighteen".