199280281100 has 36 divisors (see below), whose sum is σ = 434082519024. Its totient is φ = 79409014080.

The previous prime is 199280280959. The next prime is 199280281129. The reversal of 199280281100 is 1182082991.

It is a happy number.

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, 3762299 + ... + 3814898.

Almost surely, 2^199280281100 is an apocalyptic number.

199280281100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199280281100 is an abundant number, since it is smaller than the sum of its proper divisors (234802237924).

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

199280281100 is a wasteful number, since it uses less digits than its factorization.

199280281100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577474 (or 7577467 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 41.

The spelling of 199280281100 in words is "one hundred ninety-nine billion, two hundred eighty million, two hundred eighty-one thousand, one hundred".