204454663039 has 12 divisors (see below), whose sum is σ = 225134699832. Its totient is φ = 185534119760.

The previous prime is 204454662983. The next prime is 204454663043. The reversal of 204454663039 is 930366454402.

It is not a de Polignac number, because 204454663039 - 2⁹ = 204454662527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204454663039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204454663139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1449397 + ... + 1584190.

It is an arithmetic number, because the mean of its divisors is an integer number (18761224986).

Almost surely, 2^204454663039 is an apocalyptic number.

204454663039 is a deficient number, since it is larger than the sum of its proper divisors (20680036793).

204454663039 is a wasteful number, since it uses less digits than its factorization.

204454663039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034166 (or 3034155 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 204454663039 in words is "two hundred four billion, four hundred fifty-four million, six hundred sixty-three thousand, thirty-nine".