204135430048 has 96 divisors (see below), whose sum is σ = 449547356160. Its totient is φ = 90439680000.

The previous prime is 204135430043. The next prime is 204135430049. The reversal of 204135430048 is 840034531402.

It is a junction number, because it is equal to n+sod(n) for n = 204135429995 and 204135430022.

It is not an unprimeable number, because it can be changed into a prime (204135430043) 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, 16605088 + ... + 16617376.

It is an arithmetic number, because the mean of its divisors is an integer number (4682784960).

Almost surely, 2^204135430048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204135430048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224773678080).

204135430048 is an abundant number, since it is smaller than the sum of its proper divisors (245411926112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204135430048 is a wasteful number, since it uses less digits than its factorization.

204135430048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502 (or 13494 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 204135430048 in words is "two hundred four billion, one hundred thirty-five million, four hundred thirty thousand, forty-eight".