199089405804 has 12 divisors (see below), whose sum is σ = 464541946904. Its totient is φ = 66363135264.

The previous prime is 199089405793. The next prime is 199089405817. The reversal of 199089405804 is 408504980991.

199089405804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8295391897 + ... + 8295391920.

Almost surely, 2^199089405804 is an apocalyptic number.

It is an amenable number.

199089405804 is an abundant number, since it is smaller than the sum of its proper divisors (265452541100).

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

199089405804 is a wasteful number, since it uses less digits than its factorization.

199089405804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590783824 (or 16590783822 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 199089405804 in words is "one hundred ninety-nine billion, eighty-nine million, four hundred five thousand, eight hundred four".