204723395528 has 64 divisors (see below), whose sum is σ = 415520766000. Its totient is φ = 94346284032.

The previous prime is 204723395521. The next prime is 204723395603. The reversal of 204723395528 is 825593327402.

It can be written as a sum of positive squares in 8 ways, for example, as 203150321284 + 1573074244 = 450722^2 + 39662^2 .

It is not an unprimeable number, because it can be changed into a prime (204723395521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229958 + ... + 679946.

Almost surely, 2^204723395528 is an apocalyptic number.

It is an amenable number.

204723395528 is an abundant number, since it is smaller than the sum of its proper divisors (210797370472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204723395528 is a wasteful number, since it uses less digits than its factorization.

204723395528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450114 (or 450110 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 204723395528 in words is "two hundred four billion, seven hundred twenty-three million, three hundred ninety-five thousand, five hundred twenty-eight".