204308163479 has 4 divisors (see below), whose sum is σ = 233495043984. Its totient is φ = 175121282976.

The previous prime is 204308163469. The next prime is 204308163481. The reversal of 204308163479 is 974361803402.

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 204308163479 - 2⁴ = 204308163463 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 (204308163469) 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 3 ways as a sum of consecutive naturals, for example, 14593440242 + ... + 14593440255.

It is an arithmetic number, because the mean of its divisors is an integer number (58373760996).

Almost surely, 2^204308163479 is an apocalyptic number.

204308163479 is a deficient number, since it is larger than the sum of its proper divisors (29186880505).

204308163479 is an equidigital number, since it uses as much as digits as its factorization.

204308163479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29186880504.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 204308163479 in words is "two hundred four billion, three hundred eight million, one hundred sixty-three thousand, four hundred seventy-nine".