204404402315 has 4 divisors (see below), whose sum is σ = 245285282784. Its totient is φ = 163523521848.

The previous prime is 204404402297. The next prime is 204404402317. The reversal of 204404402315 is 513204404402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204404402315 - 2²² = 204400208011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204404402317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20440440227 + ... + 20440440236.

It is an arithmetic number, because the mean of its divisors is an integer number (61321320696).

Almost surely, 2^204404402315 is an apocalyptic number.

204404402315 is a deficient number, since it is larger than the sum of its proper divisors (40880880469).

204404402315 is an equidigital number, since it uses as much as digits as its factorization.

204404402315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40880880468.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 204404402315 its reverse (513204404402), we get a palindrome (717608806717).

The spelling of 204404402315 in words is "two hundred four billion, four hundred four million, four hundred two thousand, three hundred fifteen".