204004102042 has 16 divisors (see below), whose sum is σ = 329575891680. Its totient is φ = 94146938352.

The previous prime is 204004102039. The next prime is 204004102067. The reversal of 204004102042 is 240201400402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78948 + ... + 643615.

It is an arithmetic number, because the mean of its divisors is an integer number (20598493230).

Almost surely, 2^204004102042 is an apocalyptic number.

204004102042 is a deficient number, since it is larger than the sum of its proper divisors (125571789638).

204004102042 is a wasteful number, since it uses less digits than its factorization.

204004102042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733437.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 204004102042 its reverse (240201400402), we get a palindrome (444205502444).

The spelling of 204004102042 in words is "two hundred four billion, four million, one hundred two thousand, forty-two".