195688091496 has 64 divisors (see below), whose sum is σ = 507105000000. Its totient is φ = 62853751296.

The previous prime is 195688091393. The next prime is 195688091497. The reversal of 195688091496 is 694190886591.

It is not an unprimeable number, because it can be changed into a prime (195688091497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65580 + ... + 629028.

It is an arithmetic number, because the mean of its divisors is an integer number (7923515625).

Almost surely, 2^195688091496 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 195688091496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253552500000).

195688091496 is an abundant number, since it is smaller than the sum of its proper divisors (311416908504).

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

195688091496 is a wasteful number, since it uses less digits than its factorization.

195688091496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563986 (or 563982 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 195688091496 in words is "one hundred ninety-five billion, six hundred eighty-eight million, ninety-one thousand, four hundred ninety-six".