195793330508689 has 9 divisors (see below), whose sum is σ = 199168947620553. Its totient is φ = 192473987911332.

The previous prime is 195793330508683. The next prime is 195793330508693. The reversal of 195793330508689 is 986805033397591.

The square root of 195793330508689 is 13992617.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 195793330508689 - 2³ = 195793330508681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195793330508681) 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 8 ways as a sum of consecutive naturals, for example, 825445822 + ... + 825682984.

Almost surely, 2^{195793330508689} is an apocalyptic number.

195793330508689 is the 13992617-th square number.

195793330508689 is the 6996309-th centered octagonal number.

It is an amenable number.

195793330508689 is a deficient number, since it is larger than the sum of its proper divisors (3375617111864).

195793330508689 is an frugal number, since it uses more digits than its factorization.

195793330508689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474444 (or 237222 counting only the distinct ones).

The product of its (nonzero) digits is 1322697600, while the sum is 76.

The spelling of 195793330508689 in words is "one hundred ninety-five trillion, seven hundred ninety-three billion, three hundred thirty million, five hundred eight thousand, six hundred eighty-nine".