204242621443 has 8 divisors (see below), whose sum is σ = 233425753088. Its totient is φ = 175060893384.

The previous prime is 204242621381. The next prime is 204242621447. The reversal of 204242621443 is 344126242402.

204242621443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204242621443 - 2⁹ = 204242620931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204242621399 and 204242621408.

It is not an unprimeable number, because it can be changed into a prime (204242621447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18021 + ... + 639382.

It is an arithmetic number, because the mean of its divisors is an integer number (29178219136).

Almost surely, 2^204242621443 is an apocalyptic number.

204242621443 is a deficient number, since it is larger than the sum of its proper divisors (29183131645).

204242621443 is an equidigital number, since it uses as much as digits as its factorization.

204242621443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701793.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 204242621443 its reverse (344126242402), we get a palindrome (548368863845).

The spelling of 204242621443 in words is "two hundred four billion, two hundred forty-two million, six hundred twenty-one thousand, four hundred forty-three".