9812198271 has 8 divisors (see below), whose sum is σ = 13148675200. Its totient is φ = 6508593432.

The previous prime is 9812198267. The next prime is 9812198273. The reversal of 9812198271 is 1728912189.

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

It is not a de Polignac number, because 9812198271 - 2² = 9812198267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9812198271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812198273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8217325 + ... + 8218518.

It is an arithmetic number, because the mean of its divisors is an integer number (1643584400).

Almost surely, 2^9812198271 is an apocalyptic number.

9812198271 is a deficient number, since it is larger than the sum of its proper divisors (3336476929).

9812198271 is a wasteful number, since it uses less digits than its factorization.

9812198271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16436045.

The product of its digits is 145152, while the sum is 48.

The square root of 9812198271 is about 99056.5407784867. The cubic root of 9812198271 is about 2140.8624839621.

The spelling of 9812198271 in words is "nine billion, eight hundred twelve million, one hundred ninety-eight thousand, two hundred seventy-one".