198026534443 has 4 divisors (see below), whose sum is σ = 198032559400. Its totient is φ = 198020509488.

The previous prime is 198026534417. The next prime is 198026534467. The reversal of 198026534443 is 344435620891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344435620891 = 473159 ⋅727949.

It is a cyclic number.

It is not a de Polignac number, because 198026534443 - 2¹³ = 198026526251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198026514443) 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, 2962905 + ... + 3029002.

It is an arithmetic number, because the mean of its divisors is an integer number (49508139850).

Almost surely, 2^198026534443 is an apocalyptic number.

198026534443 is a deficient number, since it is larger than the sum of its proper divisors (6024957).

198026534443 is an equidigital number, since it uses as much as digits as its factorization.

198026534443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024956.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 198026534443 in words is "one hundred ninety-eight billion, twenty-six million, five hundred thirty-four thousand, four hundred forty-three".