195120086836 has 12 divisors (see below), whose sum is σ = 341495563780. Its totient is φ = 97549925760.

The previous prime is 195120086809. The next prime is 195120086879. The reversal of 195120086836 is 638680021591.

195120086836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9181472400 + 185938614436 = 95820^2 + 431206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 195120086836.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2485941 + ... + 2563228.

Almost surely, 2^195120086836 is an apocalyptic number.

It is an amenable number.

195120086836 is a deficient number, since it is larger than the sum of its proper divisors (146375476944).

195120086836 is a wasteful number, since it uses less digits than its factorization.

195120086836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058834 (or 5058832 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 195120086836 in words is "one hundred ninety-five billion, one hundred twenty million, eighty-six thousand, eight hundred thirty-six".