198254941571 has 8 divisors (see below), whose sum is σ = 208695440400. Its totient is φ = 187815045600.

The previous prime is 198254941559. The next prime is 198254941597. The reversal of 198254941571 is 175149452891.

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

It is a de Polignac number, because none of the positive numbers 2^k-198254941571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198254943571) 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, 627365 + ... + 888873.

It is an arithmetic number, because the mean of its divisors is an integer number (26086930050).

Almost surely, 2^198254941571 is an apocalyptic number.

198254941571 is a deficient number, since it is larger than the sum of its proper divisors (10440498829).

198254941571 is a wasteful number, since it uses less digits than its factorization.

198254941571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301429.

The product of its digits is 3628800, while the sum is 56.

The spelling of 198254941571 in words is "one hundred ninety-eight billion, two hundred fifty-four million, nine hundred forty-one thousand, five hundred seventy-one".