1818382002020 has 24 divisors (see below), whose sum is σ = 3818736835200. Its totient is φ = 727327156832.

The previous prime is 1818382002007. The next prime is 1818382002071. The reversal of 1818382002020 is 202002838181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016060 + ... + 2160819.

It is an arithmetic number, because the mean of its divisors is an integer number (159114034800).

Almost surely, 2^{1818382002020} is an apocalyptic number.

1818382002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818382002020 is an abundant number, since it is smaller than the sum of its proper divisors (2000354833180).

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

1818382002020 is a wasteful number, since it uses less digits than its factorization.

1818382002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205507 (or 3205505 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 1818382002020 in words is "one trillion, eight hundred eighteen billion, three hundred eighty-two million, two thousand, twenty".