204854873317 has 8 divisors (see below), whose sum is σ = 208836955296. Its totient is φ = 200877120912.

The previous prime is 204854873299. The next prime is 204854873357. The reversal of 204854873317 is 713378458402.

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

It is a cyclic number.

It is not a de Polignac number, because 204854873317 - 2¹⁵ = 204854840549 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 (204854873357) 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, 986763 + ... + 1176184.

It is an arithmetic number, because the mean of its divisors is an integer number (26104619412).

Almost surely, 2^204854873317 is an apocalyptic number.

It is an amenable number.

204854873317 is a deficient number, since it is larger than the sum of its proper divisors (3982081979).

204854873317 is a wasteful number, since it uses less digits than its factorization.

204854873317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164787.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 204854873317 in words is "two hundred four billion, eight hundred fifty-four million, eight hundred seventy-three thousand, three hundred seventeen".