198880904868 has 48 divisors (see below), whose sum is σ = 466906675200. Its totient is φ = 65887059744.

The previous prime is 198880904863. The next prime is 198880904917. The reversal of 198880904868 is 868409088891.

198880904868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198880904868² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198880904863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120005 + ... + 2211827.

It is an arithmetic number, because the mean of its divisors is an integer number (9727222400).

Almost surely, 2^198880904868 is an apocalyptic number.

It is an amenable number.

198880904868 is an abundant number, since it is smaller than the sum of its proper divisors (268025770332).

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

198880904868 is a wasteful number, since it uses less digits than its factorization.

198880904868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92936 (or 92934 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 69.

The spelling of 198880904868 in words is "one hundred ninety-eight billion, eight hundred eighty million, nine hundred four thousand, eight hundred sixty-eight".