195855342059 has 4 divisors (see below), whose sum is σ = 210921137616. Its totient is φ = 180789546504.

The previous prime is 195855342037. The next prime is 195855342061. The reversal of 195855342059 is 950243558591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195855342059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195855341995 and 195855342013.

It is not an unprimeable number, because it can be changed into a prime (195855342259) 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 3 ways as a sum of consecutive naturals, for example, 7532897759 + ... + 7532897784.

It is an arithmetic number, because the mean of its divisors is an integer number (52730284404).

Almost surely, 2^195855342059 is an apocalyptic number.

195855342059 is a deficient number, since it is larger than the sum of its proper divisors (15065795557).

195855342059 is a wasteful number, since it uses less digits than its factorization.

195855342059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065795556.

The product of its (nonzero) digits is 9720000, while the sum is 56.

The spelling of 195855342059 in words is "one hundred ninety-five billion, eight hundred fifty-five million, three hundred forty-two thousand, fifty-nine".