198070271999 has 4 divisors (see below), whose sum is σ = 200112233664. Its totient is φ = 196028310336.

The previous prime is 198070271951. The next prime is 198070272017. The reversal of 198070271999 is 999172070891.

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

It is a cyclic number.

It is not a de Polignac number, because 198070271999 - 2⁸ = 198070271743 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 (198070271909) 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, 1020980687 + ... + 1020980880.

It is an arithmetic number, because the mean of its divisors is an integer number (50028058416).

Almost surely, 2^198070271999 is an apocalyptic number.

198070271999 is a deficient number, since it is larger than the sum of its proper divisors (2041961665).

198070271999 is an equidigital number, since it uses as much as digits as its factorization.

198070271999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041961664.

The product of its (nonzero) digits is 5143824, while the sum is 62.

The spelling of 198070271999 in words is "one hundred ninety-eight billion, seventy million, two hundred seventy-one thousand, nine hundred ninety-nine".