1820020200004 has 24 divisors (see below), whose sum is σ = 3230000480448. Its totient is φ = 897163757280.

The previous prime is 1820020199983. The next prime is 1820020200007. The reversal of 1820020200004 is 4000020200281.

It is not an unprimeable number, because it can be changed into a prime (1820020200007) by changing a digit.

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, 10493839 + ... + 10665865.

It is an arithmetic number, because the mean of its divisors is an integer number (134583353352).

Almost surely, 2^{1820020200004} is an apocalyptic number.

It is an amenable number.

1820020200004 is a deficient number, since it is larger than the sum of its proper divisors (1409980280444).

1820020200004 is a wasteful number, since it uses less digits than its factorization.

1820020200004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209355 (or 209353 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1820020200004 its reverse (4000020200281), we get a palindrome (5820040400285).

The spelling of 1820020200004 in words is "one trillion, eight hundred twenty billion, twenty million, two hundred thousand, four".