198053183923 has 4 divisors (see below), whose sum is σ = 226346495920. Its totient is φ = 169759871928.

The previous prime is 198053183891. The next prime is 198053183929. The reversal of 198053183923 is 329381350891.

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 198053183923 - 2⁵ = 198053183891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198053183929) 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, 14146655988 + ... + 14146656001.

It is an arithmetic number, because the mean of its divisors is an integer number (56586623980).

Almost surely, 2^198053183923 is an apocalyptic number.

198053183923 is a deficient number, since it is larger than the sum of its proper divisors (28293311997).

198053183923 is an equidigital number, since it uses as much as digits as its factorization.

198053183923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28293311996.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 198053183923 in words is "one hundred ninety-eight billion, fifty-three million, one hundred eighty-three thousand, nine hundred twenty-three".