198472534717 has 4 divisors (see below), whose sum is σ = 198568463580. Its totient is φ = 198376605856.

The previous prime is 198472534657. The next prime is 198472534781. The reversal of 198472534717 is 717435274891.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33432659716 + 165039875001 = 182846^2 + 406251^2 .

It is a cyclic number.

It is not a de Polignac number, because 198472534717 - 2²⁷ = 198338316989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198472534417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47961328 + ... + 47965465.

It is an arithmetic number, because the mean of its divisors is an integer number (49642115895).

Almost surely, 2^198472534717 is an apocalyptic number.

It is an amenable number.

198472534717 is a deficient number, since it is larger than the sum of its proper divisors (95928863).

198472534717 is an equidigital number, since it uses as much as digits as its factorization.

198472534717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95928862.

The product of its digits is 11854080, while the sum is 58.

The spelling of 198472534717 in words is "one hundred ninety-eight billion, four hundred seventy-two million, five hundred thirty-four thousand, seven hundred seventeen".