198851576273 has 4 divisors (see below), whose sum is σ = 227258944320. Its totient is φ = 170444208228.

The previous prime is 198851576269. The next prime is 198851576279. The reversal of 198851576273 is 372675158891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 372675158891 = 7 ⋅53239308413.

It is not a de Polignac number, because 198851576273 - 2² = 198851576269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198851576279) 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, 14203684013 + ... + 14203684026.

It is an arithmetic number, because the mean of its divisors is an integer number (56814736080).

Almost surely, 2^198851576273 is an apocalyptic number.

It is an amenable number.

198851576273 is a deficient number, since it is larger than the sum of its proper divisors (28407368047).

198851576273 is an equidigital number, since it uses as much as digits as its factorization.

198851576273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28407368046.

The product of its digits is 25401600, while the sum is 62.

The spelling of 198851576273 in words is "one hundred ninety-eight billion, eight hundred fifty-one million, five hundred seventy-six thousand, two hundred seventy-three".