195928517208 has 16 divisors (see below), whose sum is σ = 489821293080. Its totient is φ = 65309505728.

The previous prime is 195928517177. The next prime is 195928517221. The reversal of 195928517208 is 802715829591.

It is a congruent number.

It is an unprimeable number.

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, 4081844085 + ... + 4081844132.

Almost surely, 2^195928517208 is an apocalyptic number.

It is an amenable number.

195928517208 is an abundant number, since it is smaller than the sum of its proper divisors (293892775872).

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

195928517208 is a wasteful number, since it uses less digits than its factorization.

195928517208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163688226 (or 8163688222 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 57.

The spelling of 195928517208 in words is "one hundred ninety-five billion, nine hundred twenty-eight million, five hundred seventeen thousand, two hundred eight".