18828819233 has 12 divisors (see below), whose sum is σ = 21908727252. Its totient is φ = 16134703200.

The previous prime is 18828819203. The next prime is 18828819281. The reversal of 18828819233 is 33291882881.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7691816209 + 11137003024 = 87703^2 + 105532^2 .

It is not a de Polignac number, because 18828819233 - 2⁸ = 18828818977 is a prime.

It is a super-3 number, since 3×18828819233³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18828819203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142883 + ... + 240983.

It is an arithmetic number, because the mean of its divisors is an integer number (1825727271).

Almost surely, 2^18828819233 is an apocalyptic number.

It is an amenable number.

18828819233 is a deficient number, since it is larger than the sum of its proper divisors (3079908019).

18828819233 is an equidigital number, since it uses as much as digits as its factorization.

18828819233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102032 (or 102025 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The spelling of 18828819233 in words is "eighteen billion, eight hundred twenty-eight million, eight hundred nineteen thousand, two hundred thirty-three".