204139000204 has 6 divisors (see below), whose sum is σ = 357243250364. Its totient is φ = 102069500100.

The previous prime is 204139000199. The next prime is 204139000217. The reversal of 204139000204 is 402000931402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25517375022 + ... + 25517375029.

Almost surely, 2^204139000204 is an apocalyptic number.

It is an amenable number.

204139000204 is a deficient number, since it is larger than the sum of its proper divisors (153104250160).

204139000204 is a wasteful number, since it uses less digits than its factorization.

204139000204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51034750055 (or 51034750053 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 204139000204 its reverse (402000931402), we get a palindrome (606139931606).

The spelling of 204139000204 in words is "two hundred four billion, one hundred thirty-nine million, two hundred four", and thus it is an aban number.