195891639196 has 24 divisors (see below), whose sum is σ = 374029858944. Its totient is φ = 89028580080.

The previous prime is 195891639157. The next prime is 195891639197. The reversal of 195891639196 is 691936198591.

195891639196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195891639197) 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, 20560 + ... + 626263.

It is an arithmetic number, because the mean of its divisors is an integer number (15584577456).

Almost surely, 2^195891639196 is an apocalyptic number.

It is an amenable number.

195891639196 is a deficient number, since it is larger than the sum of its proper divisors (178138219748).

195891639196 is a wasteful number, since it uses less digits than its factorization.

195891639196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653721 (or 653719 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 67.

The spelling of 195891639196 in words is "one hundred ninety-five billion, eight hundred ninety-one million, six hundred thirty-nine thousand, one hundred ninety-six".