204327505247 has 4 divisors (see below), whose sum is σ = 211373281320. Its totient is φ = 197281729176.

The previous prime is 204327505231. The next prime is 204327505253. The reversal of 204327505247 is 742505723402.

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 204327505247 - 2⁴ = 204327505231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204327504247) 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, 3522887993 + ... + 3522888050.

It is an arithmetic number, because the mean of its divisors is an integer number (52843320330).

Almost surely, 2^204327505247 is an apocalyptic number.

204327505247 is a deficient number, since it is larger than the sum of its proper divisors (7045776073).

204327505247 is an equidigital number, since it uses as much as digits as its factorization.

204327505247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045776072.

The product of its (nonzero) digits is 470400, while the sum is 41.

The spelling of 204327505247 in words is "two hundred four billion, three hundred twenty-seven million, five hundred five thousand, two hundred forty-seven".