198875188563 has 8 divisors (see below), whose sum is σ = 265193723328. Its totient is φ = 132570056424.

The previous prime is 198875188559. The next prime is 198875188627. The reversal of 198875188563 is 365881578891.

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

It is not a de Polignac number, because 198875188563 - 2² = 198875188559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198875188543) 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, 3315981 + ... + 3375422.

It is an arithmetic number, because the mean of its divisors is an integer number (33149215416).

Almost surely, 2^198875188563 is an apocalyptic number.

198875188563 is a deficient number, since it is larger than the sum of its proper divisors (66318534765).

198875188563 is an equidigital number, since it uses as much as digits as its factorization.

198875188563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701313.

The product of its digits is 116121600, while the sum is 69.

The spelling of 198875188563 in words is "one hundred ninety-eight billion, eight hundred seventy-five million, one hundred eighty-eight thousand, five hundred sixty-three".