204380914717 has 4 divisors (see below), whose sum is σ = 233578188256. Its totient is φ = 175183641180.

The previous prime is 204380914711. The next prime is 204380914741. The reversal of 204380914717 is 717419083402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204380914717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204380914711) 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, 14598636759 + ... + 14598636772.

It is an arithmetic number, because the mean of its divisors is an integer number (58394547064).

Almost surely, 2^204380914717 is an apocalyptic number.

It is an amenable number.

204380914717 is a deficient number, since it is larger than the sum of its proper divisors (29197273539).

204380914717 is an equidigital number, since it uses as much as digits as its factorization.

204380914717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29197273538.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 204380914717 in words is "two hundred four billion, three hundred eighty million, nine hundred fourteen thousand, seven hundred seventeen".