18200002004 has 24 divisors (see below), whose sum is σ = 33086188800. Its totient is φ = 8749432160.

The previous prime is 18200001971. The next prime is 18200002027. The reversal of 18200002004 is 40020000281.

It is a congruent number.

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, 300512 + ... + 355959.

It is an arithmetic number, because the mean of its divisors is an integer number (1378591200).

Almost surely, 2^18200002004 is an apocalyptic number.

It is an amenable number.

18200002004 is a deficient number, since it is larger than the sum of its proper divisors (14886186796).

18200002004 is a wasteful number, since it uses less digits than its factorization.

18200002004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656743 (or 656741 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 18200002004 its reverse (40020000281), we get a palindrome (58220002285).

The spelling of 18200002004 in words is "eighteen billion, two hundred million, two thousand, four".