204885410687 has 2 divisors, whose sum is σ = 204885410688. Its totient is φ = 204885410686.

The previous prime is 204885410657. The next prime is 204885410689. The reversal of 204885410687 is 786014588402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204885410687 - 2¹⁴ = 204885394303 is a prime.

It is a super-3 number, since 3×204885410687³ (a number of 35 digits) contains 333 as substring.

Together with 204885410689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204885410689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102442705343 + 102442705344.

It is an arithmetic number, because the mean of its divisors is an integer number (102442705344).

Almost surely, 2^204885410687 is an apocalyptic number.

204885410687 is a deficient number, since it is larger than the sum of its proper divisors (1).

204885410687 is an equidigital number, since it uses as much as digits as its factorization.

204885410687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 204885410687 in words is "two hundred four billion, eight hundred eighty-five million, four hundred ten thousand, six hundred eighty-seven".