204409513913 has 16 divisors (see below), whose sum is σ = 224309904000. Its totient is φ = 184730388480.

The previous prime is 204409513849. The next prime is 204409513921. The reversal of 204409513913 is 319315904402.

It is not a de Polignac number, because 204409513913 - 2⁶ = 204409513849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204409513963) 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 in 15 ways as a sum of consecutive naturals, for example, 2483423 + ... + 2564411.

It is an arithmetic number, because the mean of its divisors is an integer number (14019369000).

Almost surely, 2^204409513913 is an apocalyptic number.

It is an amenable number.

204409513913 is a deficient number, since it is larger than the sum of its proper divisors (19900390087).

204409513913 is a wasteful number, since it uses less digits than its factorization.

204409513913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82352.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 204409513913 in words is "two hundred four billion, four hundred nine million, five hundred thirteen thousand, nine hundred thirteen".