204740269650 has 648 divisors, whose sum is σ = 681094192896. Its totient is φ = 45633067200.

The previous prime is 204740269621. The next prime is 204740269661. The reversal of 204740269650 is 56962047402.

204740269650 is a `hidden beast` number, since 20 + 474 + 0 + 26 + 96 + 50 = 666.

It is a super-2 number, since 2×204740269650² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 204740269596 and 204740269605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 755499015 + ... + 755499285.

Almost surely, 2^204740269650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204740269650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340547096448).

204740269650 is an abundant number, since it is smaller than the sum of its proper divisors (476353923246).

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

204740269650 is an equidigital number, since it uses as much as digits as its factorization.

204740269650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 204740269650 in words is "two hundred four billion, seven hundred forty million, two hundred sixty-nine thousand, six hundred fifty".