204494310449 has 16 divisors (see below), whose sum is σ = 240300514944. Its totient is φ = 171564009600.

The previous prime is 204494310439. The next prime is 204494310451. The reversal of 204494310449 is 944013494402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204494310449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204494310439) 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, 465077 + ... + 790749.

It is an arithmetic number, because the mean of its divisors is an integer number (15018782184).

Almost surely, 2^204494310449 is an apocalyptic number.

It is an amenable number.

204494310449 is a deficient number, since it is larger than the sum of its proper divisors (35806204495).

204494310449 is a wasteful number, since it uses less digits than its factorization.

204494310449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330088.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 204494310449 in words is "two hundred four billion, four hundred ninety-four million, three hundred ten thousand, four hundred forty-nine".