1805580449198 has 8 divisors (see below), whose sum is σ = 2732338556208. Its totient is φ = 894800930464.

The previous prime is 1805580449191. The next prime is 1805580449213. The reversal of 1805580449198 is 8919440855081.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1805580449198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805580449191) by changing a digit.

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, 3994646786 + ... + 3994647237.

It is an arithmetic number, because the mean of its divisors is an integer number (341542319526).

Almost surely, 2^{1805580449198} is an apocalyptic number.

1805580449198 is a deficient number, since it is larger than the sum of its proper divisors (926758107010).

1805580449198 is a wasteful number, since it uses less digits than its factorization.

1805580449198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989294138.

The product of its (nonzero) digits is 16588800, while the sum is 62.

The spelling of 1805580449198 in words is "one trillion, eight hundred five billion, five hundred eighty million, four hundred forty-nine thousand, one hundred ninety-eight".