18200002185828 has 36 divisors (see below), whose sum is σ = 46635774253068. Its totient is φ = 5983562361600.

The previous prime is 18200002185809. The next prime is 18200002185851. The reversal of 18200002185828 is 82858120000281.

It can be written as a sum of positive squares in 2 ways, for example, as 11838953245284 + 6361048940544 = 3440778^2 + 2522112^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3462707073 + ... + 3462712328.

Almost surely, 2^{18200002185828} is an apocalyptic number.

18200002185828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18200002185828 is an abundant number, since it is smaller than the sum of its proper divisors (28435772067240).

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

18200002185828 is a wasteful number, since it uses less digits than its factorization.

18200002185828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925419484 (or 6925419479 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 18200002185828 in words is "eighteen trillion, two hundred billion, two million, one hundred eighty-five thousand, eight hundred twenty-eight".