204327706447 has 12 divisors (see below), whose sum is σ = 222604193856. Its totient is φ = 187329296160.

The previous prime is 204327706439. The next prime is 204327706573. The reversal of 204327706447 is 744607723402.

It is not a de Polignac number, because 204327706447 - 2³ = 204327706439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204327706397 and 204327706406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204327706747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9117918 + ... + 9140299.

It is an arithmetic number, because the mean of its divisors is an integer number (18550349488).

Almost surely, 2^204327706447 is an apocalyptic number.

204327706447 is a deficient number, since it is larger than the sum of its proper divisors (18276487409).

204327706447 is a wasteful number, since it uses less digits than its factorization.

204327706447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18258286 (or 18258267 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 46.

The spelling of 204327706447 in words is "two hundred four billion, three hundred twenty-seven million, seven hundred six thousand, four hundred forty-seven".