1999800000200 has 24 divisors (see below), whose sum is σ = 4649535000930. Its totient is φ = 799920000000.

The previous prime is 1999800000181. The next prime is 1999800000203. The reversal of 1999800000200 is 20000089991.

It can be written as a sum of positive squares in 3 ways, for example, as 1744296035524 + 255503964676 = 1320718^2 + 505474^2 .

It is not an unprimeable number, because it can be changed into a prime (1999800000203) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4999499801 + ... + 4999500200.

Almost surely, 2^{1999800000200} is an apocalyptic number.

1999800000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1999800000200 is an abundant number, since it is smaller than the sum of its proper divisors (2649735000730).

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

1999800000200 is a wasteful number, since it uses less digits than its factorization.

1999800000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999000017 (or 9999000008 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 1999800000200 in words is "one trillion, nine hundred ninety-nine billion, eight hundred million, two hundred", and thus it is an aban number.