204341515579 has 4 divisors (see below), whose sum is σ = 204482734384. Its totient is φ = 204200296776.

The previous prime is 204341515559. The next prime is 204341515607. The reversal of 204341515579 is 975515143402.

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 204341515579 - 2⁷ = 204341515451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204341515559) 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, 70607232 + ... + 70610125.

It is an arithmetic number, because the mean of its divisors is an integer number (51120683596).

Almost surely, 2^204341515579 is an apocalyptic number.

204341515579 is a deficient number, since it is larger than the sum of its proper divisors (141218805).

204341515579 is a wasteful number, since it uses less digits than its factorization.

204341515579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141218804.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 204341515579 in words is "two hundred four billion, three hundred forty-one million, five hundred fifteen thousand, five hundred seventy-nine".