199454757207 has 8 divisors (see below), whose sum is σ = 265941854976. Its totient is φ = 132968748792.

The previous prime is 199454757199. The next prime is 199454757247. The reversal of 199454757207 is 702757454991.

199454757207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199454757207 - 2³ = 199454757199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199454757247) 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 7 ways as a sum of consecutive naturals, for example, 374068 + ... + 734054.

It is an arithmetic number, because the mean of its divisors is an integer number (33242731872).

Almost surely, 2^199454757207 is an apocalyptic number.

199454757207 is a deficient number, since it is larger than the sum of its proper divisors (66487097769).

199454757207 is a wasteful number, since it uses less digits than its factorization.

199454757207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544677.

The product of its (nonzero) digits is 22226400, while the sum is 60.

The spelling of 199454757207 in words is "one hundred ninety-nine billion, four hundred fifty-four million, seven hundred fifty-seven thousand, two hundred seven".