198903089682 has 48 divisors (see below), whose sum is σ = 497789559072. Its totient is φ = 56728152960.

The previous prime is 198903089633. The next prime is 198903089717. The reversal of 198903089682 is 286980309891.

It is a super-2 number, since 2×198903089682² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29542548 + ... + 29549279.

It is an arithmetic number, because the mean of its divisors is an integer number (10370615814).

Almost surely, 2^198903089682 is an apocalyptic number.

198903089682 is an abundant number, since it is smaller than the sum of its proper divisors (298886469390).

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

198903089682 is a wasteful number, since it uses less digits than its factorization.

198903089682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59091863 (or 59091860 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 198903089682 in words is "one hundred ninety-eight billion, nine hundred three million, eighty-nine thousand, six hundred eighty-two".