195861398068 has 12 divisors (see below), whose sum is σ = 391722796192. Its totient is φ = 83940599160.

The previous prime is 195861398059. The next prime is 195861398093. The reversal of 195861398068 is 860893168591.

195861398068 is an admirable number.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3497524938 + ... + 3497524993.

Almost surely, 2^195861398068 is an apocalyptic number.

It is an amenable number.

195861398068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

195861398068 is a wasteful number, since it uses less digits than its factorization.

195861398068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995049942 (or 6995049940 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 195861398068 in words is "one hundred ninety-five billion, eight hundred sixty-one million, three hundred ninety-eight thousand, sixty-eight".