204260054321 has 64 divisors (see below), whose sum is σ = 238281523200. Its totient is φ = 173902181376.

The previous prime is 204260054311. The next prime is 204260054357. The reversal of 204260054321 is 123450062402.

It is a de Polignac number, because none of the positive numbers 2^k-204260054321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204260054311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336507200 + ... + 336507806.

It is an arithmetic number, because the mean of its divisors is an integer number (3723148800).

Almost surely, 2^204260054321 is an apocalyptic number.

It is an amenable number.

204260054321 is a deficient number, since it is larger than the sum of its proper divisors (34021468879).

204260054321 is a wasteful number, since it uses less digits than its factorization.

204260054321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 204260054321 in words is "two hundred four billion, two hundred sixty million, fifty-four thousand, three hundred twenty-one".