204042444464 has 20 divisors (see below), whose sum is σ = 395731189440. Its totient is φ = 101918266560.

The previous prime is 204042444409. The next prime is 204042444491. The reversal of 204042444464 is 464444240402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6418379 + ... + 6450090.

It is an arithmetic number, because the mean of its divisors is an integer number (19786559472).

Almost surely, 2^204042444464 is an apocalyptic number.

It is an amenable number.

204042444464 is a deficient number, since it is larger than the sum of its proper divisors (191688744976).

204042444464 is a wasteful number, since it uses less digits than its factorization.

204042444464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869468 (or 12869462 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 38.

Adding to 204042444464 its reverse (464444240402), we get a palindrome (668486684866).

The spelling of 204042444464 in words is "two hundred four billion, forty-two million, four hundred forty-four thousand, four hundred sixty-four".