199498844142 has 48 divisors (see below), whose sum is σ = 492879507120. Its totient is φ = 57773419776.

The previous prime is 199498844141. The next prime is 199498844189. The reversal of 199498844142 is 241448894991.

199498844142 is a `hidden beast` number, since 1 + 99 + 498 + 8 + 44 + 14 + 2 = 666.

It is a super-3 number, since 3×199498844142³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199498844142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199498844141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25071292 + ... + 25079247.

It is an arithmetic number, because the mean of its divisors is an integer number (10268323065).

Almost surely, 2^199498844142 is an apocalyptic number.

199498844142 is an abundant number, since it is smaller than the sum of its proper divisors (293380662978).

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

199498844142 is a wasteful number, since it uses less digits than its factorization.

199498844142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50150577 (or 50150574 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The spelling of 199498844142 in words is "one hundred ninety-nine billion, four hundred ninety-eight million, eight hundred forty-four thousand, one hundred forty-two".