198669483823 has 4 divisors (see below), whose sum is σ = 199408032360. Its totient is φ = 197930935288.

The previous prime is 198669483811. The next prime is 198669483829. The reversal of 198669483823 is 328384966891.

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 198669483823 - 2²⁵ = 198635929391 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198669483829) 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, 369273865 + ... + 369274402.

It is an arithmetic number, because the mean of its divisors is an integer number (49852008090).

Almost surely, 2^198669483823 is an apocalyptic number.

198669483823 is a deficient number, since it is larger than the sum of its proper divisors (738548537).

198669483823 is an equidigital number, since it uses as much as digits as its factorization.

198669483823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738548536.

The product of its digits is 107495424, while the sum is 67.

The spelling of 198669483823 in words is "one hundred ninety-eight billion, six hundred sixty-nine million, four hundred eighty-three thousand, eight hundred twenty-three".