205068275772 has 12 divisors (see below), whose sum is σ = 478492643496. Its totient is φ = 68356091920.

The previous prime is 205068275759. The next prime is 205068275777. The reversal of 205068275772 is 277572860502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205068275777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8544511479 + ... + 8544511502.

It is an arithmetic number, because the mean of its divisors is an integer number (39874386958).

Almost surely, 2^205068275772 is an apocalyptic number.

It is an amenable number.

205068275772 is an abundant number, since it is smaller than the sum of its proper divisors (273424367724).

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

205068275772 is a wasteful number, since it uses less digits than its factorization.

205068275772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089022988 (or 17089022986 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 205068275772 in words is "two hundred five billion, sixty-eight million, two hundred seventy-five thousand, seven hundred seventy-two".