204838771205485 has 8 divisors (see below), whose sum is σ = 245973627104256. Its totient is φ = 163759615859280.

The previous prime is 204838771205483. The next prime is 204838771205533. The reversal of 204838771205485 is 584502177838402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204838771205485 - 2¹ = 204838771205483 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 (204838771205483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13925130049 + ... + 13925144758.

It is an arithmetic number, because the mean of its divisors is an integer number (30746703388032).

Almost surely, 2^{204838771205485} is an apocalyptic number.

It is an amenable number.

204838771205485 is a deficient number, since it is larger than the sum of its proper divisors (41134855898771).

204838771205485 is a wasteful number, since it uses less digits than its factorization.

204838771205485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27850276283.

The product of its (nonzero) digits is 120422400, while the sum is 64.

The spelling of 204838771205485 in words is "two hundred four trillion, eight hundred thirty-eight billion, seven hundred seventy-one million, two hundred five thousand, four hundred eighty-five".