204866841808 has 10 divisors (see below), whose sum is σ = 396929506034. Its totient is φ = 102433420896.

The previous prime is 204866841797. The next prime is 204866841841. The reversal of 204866841808 is 808148668402.

It is a happy number.

204866841808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 197551803024 + 7315038784 = 444468^2 + 85528^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6402088791 + ... + 6402088822.

Almost surely, 2^204866841808 is an apocalyptic number.

It is an amenable number.

204866841808 is a deficient number, since it is larger than the sum of its proper divisors (192062664226).

204866841808 is a wasteful number, since it uses less digits than its factorization.

204866841808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12804177621 (or 12804177615 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 55.

The spelling of 204866841808 in words is "two hundred four billion, eight hundred sixty-six million, eight hundred forty-one thousand, eight hundred eight".