198193689424 has 20 divisors (see below), whose sum is σ = 392930513536. Its totient is φ = 96792266592.

The previous prime is 198193689377. The next prime is 198193689493. The reversal of 198193689424 is 424986391891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144035424 + ... + 144036799.

Almost surely, 2^198193689424 is an apocalyptic number.

It is an amenable number.

198193689424 is a deficient number, since it is larger than the sum of its proper divisors (194736824112).

198193689424 is a wasteful number, since it uses less digits than its factorization.

198193689424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288072274 (or 288072268 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 64.

The spelling of 198193689424 in words is "one hundred ninety-eight billion, one hundred ninety-three million, six hundred eighty-nine thousand, four hundred twenty-four".