205094942768 has 20 divisors (see below), whose sum is σ = 418285739160. Its totient is φ = 97150235904.

The previous prime is 205094942761. The next prime is 205094942771. The reversal of 205094942768 is 867249490502.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (205094942761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337326905 + ... + 337327512.

It is an arithmetic number, because the mean of its divisors is an integer number (20914286958).

Almost surely, 2^205094942768 is an apocalyptic number.

It is an amenable number.

205094942768 is an abundant number, since it is smaller than the sum of its proper divisors (213190796392).

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

205094942768 is a wasteful number, since it uses less digits than its factorization.

205094942768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674654444 (or 674654438 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 205094942768 in words is "two hundred five billion, ninety-four million, nine hundred forty-two thousand, seven hundred sixty-eight".