1818583822200 has 48 divisors (see below), whose sum is σ = 5637609850680. Its totient is φ = 484955685760.

The previous prime is 1818583822183. The next prime is 1818583822207. The reversal of 1818583822200 is 22283858181.

It is a super-2 number, since 2×1818583822200² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1818583822200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818583822207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1515485919 + ... + 1515487118.

Almost surely, 2^{1818583822200} is an apocalyptic number.

1818583822200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818583822200 is an abundant number, since it is smaller than the sum of its proper divisors (3819026028480).

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

1818583822200 is a wasteful number, since it uses less digits than its factorization.

1818583822200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030973056 (or 3030973047 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 1818583822200 in words is "one trillion, eight hundred eighteen billion, five hundred eighty-three million, eight hundred twenty-two thousand, two hundred".