195169457688 has 16 divisors (see below), whose sum is σ = 487923644280. Its totient is φ = 65056485888.

The previous prime is 195169457579. The next prime is 195169457689. The reversal of 195169457688 is 886754961591.

It is a super-2 number, since 2×195169457688² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195169457689) 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, 4066030345 + ... + 4066030392.

Almost surely, 2^195169457688 is an apocalyptic number.

It is an amenable number.

195169457688 is an abundant number, since it is smaller than the sum of its proper divisors (292754186592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195169457688 is a wasteful number, since it uses less digits than its factorization.

195169457688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8132060746 (or 8132060742 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 69.

The spelling of 195169457688 in words is "one hundred ninety-five billion, one hundred sixty-nine million, four hundred fifty-seven thousand, six hundred eighty-eight".