204573015823 has 8 divisors (see below), whose sum is σ = 225145524816. Its totient is φ = 184329667200.

The previous prime is 204573015763. The next prime is 204573015839. The reversal of 204573015823 is 328510375402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204573015823 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 (204573015853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82288788 + ... + 82291273.

It is an arithmetic number, because the mean of its divisors is an integer number (28143190602).

Almost surely, 2^204573015823 is an apocalyptic number.

204573015823 is a deficient number, since it is larger than the sum of its proper divisors (20572508993).

204573015823 is a wasteful number, since it uses less digits than its factorization.

204573015823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164580185.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 204573015823 in words is "two hundred four billion, five hundred seventy-three million, fifteen thousand, eight hundred twenty-three".