1818281828182 has 16 divisors (see below), whose sum is σ = 2818333874304. Its totient is φ = 879813759000.

The previous prime is 1818281828179. The next prime is 1818281828219. The reversal of 1818281828182 is 2818281828181.

It is a super-2 number, since 2×1818281828182² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15199069 + ... + 15318232.

It is an arithmetic number, because the mean of its divisors is an integer number (176145867144).

Almost surely, 2^{1818281828182} is an apocalyptic number.

1818281828182 is a deficient number, since it is larger than the sum of its proper divisors (1000052046122).

1818281828182 is an frugal number, since it uses more digits than its factorization.

1818281828182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30517396 (or 30517334 counting only the distinct ones).

The product of its digits is 2097152, while the sum is 58.

Subtracting 1818281828182 from its reverse (2818281828181), we obtain a palindrome (999999999999).

The spelling of 1818281828182 in words is "one trillion, eight hundred eighteen billion, two hundred eighty-one million, eight hundred twenty-eight thousand, one hundred eighty-two".