204728020992 has 728 divisors, whose sum is σ = 701323642368. Its totient is φ = 59122483200.

The previous prime is 204728020961. The next prime is 204728020993. The reversal of 204728020992 is 299020827402.

It is not an unprimeable number, because it can be changed into a prime (204728020993) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 755453817 + ... + 755454087.

Almost surely, 2^204728020992 is an apocalyptic number.

204728020992 is a gapful number since it is divisible by the number (22) 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 204728020992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350661821184).

204728020992 is an abundant number, since it is smaller than the sum of its proper divisors (496595621376).

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

204728020992 is an equidigital number, since it uses as much as digits as its factorization.

204728020992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 204728020992 in words is "two hundred four billion, seven hundred twenty-eight million, twenty thousand, nine hundred ninety-two".