198239608012 has 6 divisors (see below), whose sum is σ = 346919314028. Its totient is φ = 99119804004.

The previous prime is 198239608009. The next prime is 198239608013. The reversal of 198239608012 is 210806932891.

198239608012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (198239608013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24779950998 + ... + 24779951005.

Almost surely, 2^198239608012 is an apocalyptic number.

It is an amenable number.

198239608012 is a deficient number, since it is larger than the sum of its proper divisors (148679706016).

198239608012 is a wasteful number, since it uses less digits than its factorization.

198239608012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49559902007 (or 49559902005 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 198239608012 in words is "one hundred ninety-eight billion, two hundred thirty-nine million, six hundred eight thousand, twelve".