199142838574 has 12 divisors (see below), whose sum is σ = 317319299064. Its totient is φ = 93714276704.

The previous prime is 199142838553. The next prime is 199142838577. The reversal of 199142838574 is 475838241991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199142838577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172268314 + ... + 172269469.

It is an arithmetic number, because the mean of its divisors is an integer number (26443274922).

Almost surely, 2^199142838574 is an apocalyptic number.

199142838574 is a deficient number, since it is larger than the sum of its proper divisors (118176460490).

199142838574 is a wasteful number, since it uses less digits than its factorization.

199142838574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344537819 (or 344537802 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The spelling of 199142838574 in words is "one hundred ninety-nine billion, one hundred forty-two million, eight hundred thirty-eight thousand, five hundred seventy-four".