195981194208 has 48 divisors (see below), whose sum is σ = 514509241680. Its totient is φ = 65319622656.

The previous prime is 195981194203. The next prime is 195981194237. The reversal of 195981194208 is 802491189591.

195981194208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195981194203) 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 7 ways as a sum of consecutive naturals, for example, 765438 + ... + 988866.

It is an arithmetic number, because the mean of its divisors is an integer number (10718942535).

Almost surely, 2^195981194208 is an apocalyptic number.

It is an amenable number.

195981194208 is an abundant number, since it is smaller than the sum of its proper divisors (318528047472).

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

195981194208 is a wasteful number, since it uses less digits than its factorization.

195981194208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232579 (or 232571 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 57.

The spelling of 195981194208 in words is "one hundred ninety-five billion, nine hundred eighty-one million, one hundred ninety-four thousand, two hundred eight".