198572543092 has 24 divisors (see below), whose sum is σ = 433249185600. Its totient is φ = 77365925760.

The previous prime is 198572543089. The next prime is 198572543129. The reversal of 198572543092 is 290345275891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322357717 + ... + 322358332.

It is an arithmetic number, because the mean of its divisors is an integer number (18052049400).

Almost surely, 2^198572543092 is an apocalyptic number.

It is an amenable number.

198572543092 is an abundant number, since it is smaller than the sum of its proper divisors (234676642508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198572543092 is a wasteful number, since it uses less digits than its factorization.

198572543092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644716071 (or 644716069 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 198572543092 in words is "one hundred ninety-eight billion, five hundred seventy-two million, five hundred forty-three thousand, ninety-two".