204888555317 has 16 divisors (see below), whose sum is σ = 211089648000. Its totient is φ = 198748028160.

The previous prime is 204888555307. The next prime is 204888555329. The reversal of 204888555317 is 713555888402.

It is a cyclic number.

It is not a de Polignac number, because 204888555317 - 2¹⁸ = 204888293173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204888555307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5128184 + ... + 5167982.

It is an arithmetic number, because the mean of its divisors is an integer number (13193103000).

Almost surely, 2^204888555317 is an apocalyptic number.

It is an amenable number.

204888555317 is a deficient number, since it is larger than the sum of its proper divisors (6201092683).

204888555317 is a wasteful number, since it uses less digits than its factorization.

204888555317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40556.

The product of its (nonzero) digits is 10752000, while the sum is 56.

The spelling of 204888555317 in words is "two hundred four billion, eight hundred eighty-eight million, five hundred fifty-five thousand, three hundred seventeen".