204085074657 has 16 divisors (see below), whose sum is σ = 278069909760. Its totient is φ = 133081953792.

The previous prime is 204085074629. The next prime is 204085074659. The reversal of 204085074657 is 756470580402.

204085074657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204085074657 - 2³⁰ = 203011332833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204085074659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198288 + ... + 668945.

It is an arithmetic number, because the mean of its divisors is an integer number (17379369360).

Almost surely, 2^204085074657 is an apocalyptic number.

It is an amenable number.

204085074657 is a deficient number, since it is larger than the sum of its proper divisors (73984835103).

204085074657 is a wasteful number, since it uses less digits than its factorization.

204085074657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868952.

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 204085074657 in words is "two hundred four billion, eighty-five million, seventy-four thousand, six hundred fifty-seven".