204894668772 has 60 divisors (see below), whose sum is σ = 535836610540. Its totient is φ = 68272533504.

The previous prime is 204894668743. The next prime is 204894668773. The reversal of 204894668772 is 277866498402.

204894668772 is a `hidden beast` number, since 2 + 0 + 489 + 4 + 6 + 6 + 87 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62663106276 + 142231562496 = 250326^2 + 377136^2 .

It is not an unprimeable number, because it can be changed into a prime (204894668773) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 753648 + ... + 988824.

Almost surely, 2^204894668772 is an apocalyptic number.

It is an amenable number.

204894668772 is an abundant number, since it is smaller than the sum of its proper divisors (330941941768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204894668772 is a wasteful number, since it uses less digits than its factorization.

204894668772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237882 (or 237871 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 63.

The spelling of 204894668772 in words is "two hundred four billion, eight hundred ninety-four million, six hundred sixty-eight thousand, seven hundred seventy-two".