198481084453893 has 16 divisors (see below), whose sum is σ = 271828467256640. Its totient is φ = 128728121515776.

The previous prime is 198481084453889. The next prime is 198481084453907. The reversal of 198481084453893 is 398354480184891.

It is not a de Polignac number, because 198481084453893 - 2² = 198481084453889 is a prime.

It is the 14088332-nd Hogben 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 (198481084453823) by changing a digit.

It is a nontrivial repunit in base 14088331.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112773508 + ... + 114519981.

It is an arithmetic number, because the mean of its divisors is an integer number (16989279203540).

Almost surely, 2^{198481084453893} is an apocalyptic number.

It is an amenable number.

198481084453893 is a deficient number, since it is larger than the sum of its proper divisors (73347382802747).

198481084453893 is a wasteful number, since it uses less digits than its factorization.

198481084453893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227301396.

The product of its (nonzero) digits is 955514880, while the sum is 75.

The spelling of 198481084453893 in words is "one hundred ninety-eight trillion, four hundred eighty-one billion, eighty-four million, four hundred fifty-three thousand, eight hundred ninety-three".