198986800929 has 96 divisors (see below), whose sum is σ = 334462867200. Its totient is φ = 104532664320.

The previous prime is 198986800879. The next prime is 198986800993. The reversal of 198986800929 is 929008689891.

It is not a de Polignac number, because 198986800929 - 2⁸ = 198986800673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198986800429) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19334617 + ... + 19344905.

It is an arithmetic number, because the mean of its divisors is an integer number (3483988200).

Almost surely, 2^198986800929 is an apocalyptic number.

It is an amenable number.

198986800929 is a deficient number, since it is larger than the sum of its proper divisors (135476066271).

198986800929 is a wasteful number, since it uses less digits than its factorization.

198986800929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503 (or 10496 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 69.

The spelling of 198986800929 in words is "one hundred ninety-eight billion, nine hundred eighty-six million, eight hundred thousand, nine hundred twenty-nine".