204642265135 has 64 divisors (see below), whose sum is σ = 314457707520. Its totient is φ = 124136570880.

The previous prime is 204642265133. The next prime is 204642265153. The reversal of 204642265135 is 531562246402.

It is a happy number.

204642265135 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 204642265135 - 2¹ = 204642265133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204642265133) 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 63 ways as a sum of consecutive naturals, for example, 4430319 + ... + 4476271.

It is an arithmetic number, because the mean of its divisors is an integer number (4913401680).

Almost surely, 2^204642265135 is an apocalyptic number.

204642265135 is a deficient number, since it is larger than the sum of its proper divisors (109815442385).

204642265135 is a wasteful number, since it uses less digits than its factorization.

204642265135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46288.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 204642265135 in words is "two hundred four billion, six hundred forty-two million, two hundred sixty-five thousand, one hundred thirty-five".