204450210423 has 6 divisors (see below), whose sum is σ = 295316970624. Its totient is φ = 136300140276.

The previous prime is 204450210403. The next prime is 204450210427. The reversal of 204450210423 is 324012054402.

204450210423 is a `hidden beast` number, since 2 + 0 + 445 + 0 + 210 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 204450210423 - 2¹² = 204450206327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204450210427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11358345015 + ... + 11358345032.

It is an arithmetic number, because the mean of its divisors is an integer number (49219495104).

Almost surely, 2^204450210423 is an apocalyptic number.

204450210423 is a deficient number, since it is larger than the sum of its proper divisors (90866760201).

204450210423 is a wasteful number, since it uses less digits than its factorization.

204450210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22716690053 (or 22716690050 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 204450210423 its reverse (324012054402), we get a palindrome (528462264825).

The spelling of 204450210423 in words is "two hundred four billion, four hundred fifty million, two hundred ten thousand, four hundred twenty-three".