204731885904 has 960 divisors, whose sum is σ = 754631700480. Its totient is φ = 46282752000.

The previous prime is 204731885893. The next prime is 204731885927. The reversal of 204731885904 is 409588137402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1355840229 + ... + 1355840379.

It is an arithmetic number, because the mean of its divisors is an integer number (786074688).

Almost surely, 2^204731885904 is an apocalyptic number.

204731885904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204731885904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377315850240).

204731885904 is an abundant number, since it is smaller than the sum of its proper divisors (549899814576).

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

204731885904 is a wasteful number, since it uses less digits than its factorization.

204731885904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 204731885904 in words is "two hundred four billion, seven hundred thirty-one million, eight hundred eighty-five thousand, nine hundred four".