195781952756 has 12 divisors (see below), whose sum is σ = 368973680292. Its totient is φ = 90360901248.

The previous prime is 195781952747. The next prime is 195781952783. The reversal of 195781952756 is 657259187591.

It can be written as a sum of positive squares in 2 ways, for example, as 82673500900 + 113108451856 = 287530^2 + 336316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195781952692 and 195781952701.

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, 1882518725 + ... + 1882518828.

It is an arithmetic number, because the mean of its divisors is an integer number (30747806691).

Almost surely, 2^195781952756 is an apocalyptic number.

It is an amenable number.

195781952756 is a deficient number, since it is larger than the sum of its proper divisors (173191727536).

195781952756 is a wasteful number, since it uses less digits than its factorization.

195781952756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765037570 (or 3765037568 counting only the distinct ones).

The product of its digits is 47628000, while the sum is 65.

The spelling of 195781952756 in words is "one hundred ninety-five billion, seven hundred eighty-one million, nine hundred fifty-two thousand, seven hundred fifty-six".