198104518883 has 4 divisors (see below), whose sum is σ = 201842340048. Its totient is φ = 194366697720.

The previous prime is 198104518879. The next prime is 198104518891. The reversal of 198104518883 is 388815401891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 388815401891 = 7 ⋅55545057413.

It is a cyclic number.

It is not a de Polignac number, because 198104518883 - 2² = 198104518879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198104518483) 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, 1868910503 + ... + 1868910608.

It is an arithmetic number, because the mean of its divisors is an integer number (50460585012).

Almost surely, 2^198104518883 is an apocalyptic number.

198104518883 is a deficient number, since it is larger than the sum of its proper divisors (3737821165).

198104518883 is an equidigital number, since it uses as much as digits as its factorization.

198104518883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737821164.

The product of its (nonzero) digits is 2211840, while the sum is 56.

The spelling of 198104518883 in words is "one hundred ninety-eight billion, one hundred four million, five hundred eighteen thousand, eight hundred eighty-three".