197850605568 has 768 divisors, whose sum is σ = 688368844800. Its totient is φ = 49049763840.

The previous prime is 197850605549. The next prime is 197850605597. The reversal of 197850605568 is 865506058791.

It is a tau number, because it is divible by the number of its divisors (768).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1557878721 + ... + 1557878847.

It is an arithmetic number, because the mean of its divisors is an integer number (896313600).

Almost surely, 2^197850605568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197850605568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344184422400).

197850605568 is an abundant number, since it is smaller than the sum of its proper divisors (490518239232).

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

197850605568 is a wasteful number, since it uses less digits than its factorization.

197850605568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 60.

The spelling of 197850605568 in words is "one hundred ninety-seven billion, eight hundred fifty million, six hundred five thousand, five hundred sixty-eight".