198942759428 has 48 divisors (see below), whose sum is σ = 403170130944. Its totient is φ = 84131271840.

The previous prime is 198942759427. The next prime is 198942759461. The reversal of 198942759428 is 824957249891.

It is not an unprimeable number, because it can be changed into a prime (198942759427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870193 + ... + 1973703.

It is an arithmetic number, because the mean of its divisors is an integer number (8399377728).

Almost surely, 2^198942759428 is an apocalyptic number.

It is an amenable number.

198942759428 is an abundant number, since it is smaller than the sum of its proper divisors (204227371516).

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

198942759428 is a wasteful number, since it uses less digits than its factorization.

198942759428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104432 (or 104430 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 68.

The spelling of 198942759428 in words is "one hundred ninety-eight billion, nine hundred forty-two million, seven hundred fifty-nine thousand, four hundred twenty-eight".