195651118873 has 6 divisors (see below), whose sum is σ = 227594158746. Its totient is φ = 167700958992.

The previous prime is 195651118843. The next prime is 195651118889. The reversal of 195651118873 is 378811156591.

It can be written as a sum of positive squares in only one way, i.e., 164585998864 + 31065120009 = 405692^2 + 176253^2 .

It is a de Polignac number, because none of the positive numbers 2^k-195651118873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195651118813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1996439940 + ... + 1996440037.

It is an arithmetic number, because the mean of its divisors is an integer number (37932359791).

Almost surely, 2^195651118873 is an apocalyptic number.

It is an amenable number.

195651118873 is a deficient number, since it is larger than the sum of its proper divisors (31943039873).

195651118873 is an equidigital number, since it uses as much as digits as its factorization.

195651118873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992879991 (or 3992879984 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 55.

The spelling of 195651118873 in words is "one hundred ninety-five billion, six hundred fifty-one million, one hundred eighteen thousand, eight hundred seventy-three".