204694535129 has 8 divisors (see below), whose sum is σ = 233983901568. Its totient is φ = 175416991200.

The previous prime is 204694535113. The next prime is 204694535179. The reversal of 204694535129 is 921535496402.

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 204694535129 - 2⁴ = 204694535113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204694535179) 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, 2918492 + ... + 2987805.

It is an arithmetic number, because the mean of its divisors is an integer number (29247987696).

Almost surely, 2^204694535129 is an apocalyptic number.

It is an amenable number.

204694535129 is a deficient number, since it is larger than the sum of its proper divisors (29289366439).

204694535129 is an equidigital number, since it uses as much as digits as its factorization.

204694535129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911255.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 204694535129 in words is "two hundred four billion, six hundred ninety-four million, five hundred thirty-five thousand, one hundred twenty-nine".