194991483198 has 32 divisors (see below), whose sum is σ = 410865315840. Its totient is φ = 61522718400.

The previous prime is 194991483139. The next prime is 194991483223. The reversal of 194991483198 is 891384199491.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611815 + ... + 874242.

It is an arithmetic number, because the mean of its divisors is an integer number (12839541120).

Almost surely, 2^194991483198 is an apocalyptic number.

194991483198 is an abundant number, since it is smaller than the sum of its proper divisors (215873832642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194991483198 is a wasteful number, since it uses less digits than its factorization.

194991483198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487232.

The product of its digits is 20155392, while the sum is 66.

The spelling of 194991483198 in words is "one hundred ninety-four billion, nine hundred ninety-one million, four hundred eighty-three thousand, one hundred ninety-eight".