198880904798 has 16 divisors (see below), whose sum is σ = 324152240640. Its totient is φ = 91167816600.

The previous prime is 198880904797. The next prime is 198880904809. The reversal of 198880904798 is 897409088891.

It is a happy number.

It is a super-2 number, since 2×198880904798² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198880904797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84413468 + ... + 84415823.

It is an arithmetic number, because the mean of its divisors is an integer number (20259515040).

Almost surely, 2^198880904798 is an apocalyptic number.

198880904798 is a deficient number, since it is larger than the sum of its proper divisors (125271335842).

198880904798 is a wasteful number, since it uses less digits than its factorization.

198880904798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168829343.

The product of its (nonzero) digits is 83607552, while the sum is 71.

The spelling of 198880904798 in words is "one hundred ninety-eight billion, eight hundred eighty million, nine hundred four thousand, seven hundred ninety-eight".