198393904006 has 4 divisors (see below), whose sum is σ = 297590856012. Its totient is φ = 99196952002.

The previous prime is 198393903989. The next prime is 198393904019. The reversal of 198393904006 is 600409393891.

198393904006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×198393904006² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49598476000 + ... + 49598476003.

It is an arithmetic number, because the mean of its divisors is an integer number (74397714003).

Almost surely, 2^198393904006 is an apocalyptic number.

198393904006 is a deficient number, since it is larger than the sum of its proper divisors (99196952006).

198393904006 is an equidigital number, since it uses as much as digits as its factorization.

198393904006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99196952005.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 198393904006 in words is "one hundred ninety-eight billion, three hundred ninety-three million, nine hundred four thousand, six".