204755317271 has 4 divisors (see below), whose sum is σ = 204765155232. Its totient is φ = 204745479312.

The previous prime is 204755317253. The next prime is 204755317297. The reversal of 204755317271 is 172713557402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204755317271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204755317201) 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, 4887695 + ... + 4929408.

It is an arithmetic number, because the mean of its divisors is an integer number (51191288808).

Almost surely, 2^204755317271 is an apocalyptic number.

204755317271 is a deficient number, since it is larger than the sum of its proper divisors (9837961).

204755317271 is an equidigital number, since it uses as much as digits as its factorization.

204755317271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837960.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 204755317271 in words is "two hundred four billion, seven hundred fifty-five million, three hundred seventeen thousand, two hundred seventy-one".