198567270744191 has 8 divisors (see below), whose sum is σ = 199882724696064. Its totient is φ = 197251822567800.

The previous prime is 198567270744169. The next prime is 198567270744211. The reversal of 198567270744191 is 191447072765891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198567270744191 is a prime.

It is a super-2 number, since 2×198567270744191² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198567270744151) 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, 84391106 + ... + 86712128.

It is an arithmetic number, because the mean of its divisors is an integer number (24985340587008).

Almost surely, 2^{198567270744191} is an apocalyptic number.

198567270744191 is a deficient number, since it is larger than the sum of its proper divisors (1315453951873).

198567270744191 is a wasteful number, since it uses less digits than its factorization.

198567270744191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887741.

The product of its (nonzero) digits is 213373440, while the sum is 71.

The spelling of 198567270744191 in words is "one hundred ninety-eight trillion, five hundred sixty-seven billion, two hundred seventy million, seven hundred forty-four thousand, one hundred ninety-one".