198394349297 has 8 divisors (see below), whose sum is σ = 213199898976. Its totient is φ = 183937165632.

The previous prime is 198394349287. The next prime is 198394349299. The reversal of 198394349297 is 792943493891.

198394349297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 198394349297 - 2⁴ = 198394349281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198394349299) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 87090323 + ... + 87092600.

It is an arithmetic number, because the mean of its divisors is an integer number (26649987372).

Almost surely, 2^198394349297 is an apocalyptic number.

198394349297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

198394349297 is a deficient number, since it is larger than the sum of its proper divisors (14805549679).

198394349297 is a wasteful number, since it uses less digits than its factorization.

198394349297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174183007.

The product of its digits is 105815808, while the sum is 68.

The spelling of 198394349297 in words is "one hundred ninety-eight billion, three hundred ninety-four million, three hundred forty-nine thousand, two hundred ninety-seven".