199799349430 has 32 divisors (see below), whose sum is σ = 361868399424. Its totient is φ = 79424482176.

The previous prime is 199799349413. The next prime is 199799349433. The reversal of 199799349430 is 34943997991.

199799349430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199799349433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10633524 + ... + 10652296.

It is an arithmetic number, because the mean of its divisors is an integer number (11308387482).

Almost surely, 2^199799349430 is an apocalyptic number.

199799349430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199799349430 is a deficient number, since it is larger than the sum of its proper divisors (162069049994).

199799349430 is a wasteful number, since it uses less digits than its factorization.

199799349430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25320.

The product of its (nonzero) digits is 59521392, while the sum is 67.

The spelling of 199799349430 in words is "one hundred ninety-nine billion, seven hundred ninety-nine million, three hundred forty-nine thousand, four hundred thirty".