204635696339 has 2 divisors, whose sum is σ = 204635696340. Its totient is φ = 204635696338.

The previous prime is 204635696327. The next prime is 204635696357. The reversal of 204635696339 is 933696536402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204635696339 - 2⁴ = 204635696323 is a prime.

It is a super-2 number, since 2×204635696339² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204635696039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102317848169 + 102317848170.

It is an arithmetic number, because the mean of its divisors is an integer number (102317848170).

Almost surely, 2^204635696339 is an apocalyptic number.

204635696339 is a deficient number, since it is larger than the sum of its proper divisors (1).

204635696339 is an equidigital number, since it uses as much as digits as its factorization.

204635696339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18895680, while the sum is 56.

The spelling of 204635696339 in words is "two hundred four billion, six hundred thirty-five million, six hundred ninety-six thousand, three hundred thirty-nine".