204405964210 has 48 divisors (see below), whose sum is σ = 428043896280. Its totient is φ = 70075031040.

The previous prime is 204405964193. The next prime is 204405964223. The reversal of 204405964210 is 12469504402.

It can be written as a sum of positive squares in 4 ways, for example, as 165137389641 + 39268574569 = 406371^2 + 198163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204405964210.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8102296 + ... + 8127484.

Almost surely, 2^204405964210 is an apocalyptic number.

204405964210 is an abundant number, since it is smaller than the sum of its proper divisors (223637932070).

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

204405964210 is a wasteful number, since it uses less digits than its factorization.

204405964210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41771 (or 41764 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 204405964210 in words is "two hundred four billion, four hundred five million, nine hundred sixty-four thousand, two hundred ten".