195746507768 has 16 divisors (see below), whose sum is σ = 419456802480. Its totient is φ = 83891360448.

The previous prime is 195746507753. The next prime is 195746507771. The reversal of 195746507768 is 867705647591.

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, 1747736621 + ... + 1747736732.

It is an arithmetic number, because the mean of its divisors is an integer number (26216050155).

Almost surely, 2^195746507768 is an apocalyptic number.

It is an amenable number.

195746507768 is an abundant number, since it is smaller than the sum of its proper divisors (223710294712).

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

195746507768 is a wasteful number, since it uses less digits than its factorization.

195746507768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495473366 (or 3495473362 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 65.

The spelling of 195746507768 in words is "one hundred ninety-five billion, seven hundred forty-six million, five hundred seven thousand, seven hundred sixty-eight".