204856754428 has 6 divisors (see below), whose sum is σ = 358499320256. Its totient is φ = 102428377212.

The previous prime is 204856754363. The next prime is 204856754429. The reversal of 204856754428 is 824457658402.

It is a happy number.

204856754428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204856754429) 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 as a sum of consecutive naturals, namely, 25607094300 + ... + 25607094307.

Almost surely, 2^204856754428 is an apocalyptic number.

It is an amenable number.

204856754428 is a deficient number, since it is larger than the sum of its proper divisors (153642565828).

204856754428 is a wasteful number, since it uses less digits than its factorization.

204856754428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51214188611 (or 51214188609 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 55.

The spelling of 204856754428 in words is "two hundred four billion, eight hundred fifty-six million, seven hundred fifty-four thousand, four hundred twenty-eight".