195900313317 has 4 divisors (see below), whose sum is σ = 261200417760. Its totient is φ = 130600208876.

The previous prime is 195900313307. The next prime is 195900313339. The reversal of 195900313317 is 713313009591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195900313317 - 2¹² = 195900309221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195900313307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32650052217 + ... + 32650052222.

It is an arithmetic number, because the mean of its divisors is an integer number (65300104440).

Almost surely, 2^195900313317 is an apocalyptic number.

It is an amenable number.

195900313317 is a deficient number, since it is larger than the sum of its proper divisors (65300104443).

195900313317 is an equidigital number, since it uses as much as digits as its factorization.

195900313317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65300104442.

The product of its (nonzero) digits is 76545, while the sum is 42.

The spelling of 195900313317 in words is "one hundred ninety-five billion, nine hundred million, three hundred thirteen thousand, three hundred seventeen".