199443413745 has 24 divisors (see below), whose sum is σ = 345838272000. Its totient is φ = 106327865376.

The previous prime is 199443413713. The next prime is 199443413753. The reversal of 199443413745 is 547314344991.

It is a happy number.

199443413745 is a `hidden beast` number, since 1 + 99 + 443 + 41 + 3 + 74 + 5 = 666.

It is not a de Polignac number, because 199443413745 - 2⁵ = 199443413713 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199443413691 and 199443413700.

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 23 ways as a sum of consecutive naturals, for example, 758545 + ... + 987054.

It is an arithmetic number, because the mean of its divisors is an integer number (14409928000).

Almost surely, 2^199443413745 is an apocalyptic number.

199443413745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199443413745 is a deficient number, since it is larger than the sum of its proper divisors (146394858255).

199443413745 is a wasteful number, since it uses less digits than its factorization.

199443413745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748149 (or 1748146 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 199443413745 in words is "one hundred ninety-nine billion, four hundred forty-three million, four hundred thirteen thousand, seven hundred forty-five".