204696820827 has 12 divisors (see below), whose sum is σ = 305868813120. Its totient is φ = 131758873008.

The previous prime is 204696820817. The next prime is 204696820841. The reversal of 204696820827 is 728028696402.

204696820827 is a `hidden beast` number, since 20 + 469 + 6 + 82 + 0 + 82 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-204696820827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204696820817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392139243 + ... + 392139764.

It is an arithmetic number, because the mean of its divisors is an integer number (25489067760).

Almost surely, 2^204696820827 is an apocalyptic number.

204696820827 is a deficient number, since it is larger than the sum of its proper divisors (101171992293).

204696820827 is a wasteful number, since it uses less digits than its factorization.

204696820827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784279042 (or 784279039 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 204696820827 in words is "two hundred four billion, six hundred ninety-six million, eight hundred twenty thousand, eight hundred twenty-seven".