199549273407 has 16 divisors (see below), whose sum is σ = 290630968320. Its totient is φ = 120781670400.

The previous prime is 199549273369. The next prime is 199549273421. The reversal of 199549273407 is 704372945991.

199549273407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199549273407 - 2³⁴ = 182369404223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199549273457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906319 + ... + 3957072.

It is an arithmetic number, because the mean of its divisors is an integer number (18164435520).

Almost surely, 2^199549273407 is an apocalyptic number.

199549273407 is a deficient number, since it is larger than the sum of its proper divisors (91081694913).

199549273407 is a wasteful number, since it uses less digits than its factorization.

199549273407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864174.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 199549273407 in words is "one hundred ninety-nine billion, five hundred forty-nine million, two hundred seventy-three thousand, four hundred seven".