204865798534272 has 160 divisors (see below), whose sum is σ = 610478473185900. Its totient is φ = 68198861537280.

The previous prime is 204865798534259. The next prime is 204865798534351. The reversal of 204865798534272 is 272435897568402.

It is a happy number.

204865798534272 is a `hidden beast` number, since 2 + 0 + 4 + 8 + 6 + 579 + 8 + 5 + 3 + 42 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 168658428764736 + 36207369769536 = 12986856^2 + 6017256^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 204865798534272.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5092497 + ... + 20872592.

Almost surely, 2^{204865798534272} is an apocalyptic number.

It is an amenable number.

204865798534272 is an abundant number, since it is smaller than the sum of its proper divisors (405612674651628).

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

204865798534272 is an equidigital number, since it uses as much as digits as its factorization.

204865798534272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25965876 (or 25965855 counting only the distinct ones).

The product of its (nonzero) digits is 1625702400, while the sum is 72.

The spelling of 204865798534272 in words is "two hundred four trillion, eight hundred sixty-five billion, seven hundred ninety-eight million, five hundred thirty-four thousand, two hundred seventy-two".