204238442178904 has 32 divisors (see below), whose sum is σ = 456682230961920. Its totient is φ = 83725075675296.

The previous prime is 204238442178803. The next prime is 204238442178917. The reversal of 204238442178904 is 409871244832402.

It is a congruent number.

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, 79285108254 + ... + 79285110829.

It is an arithmetic number, because the mean of its divisors is an integer number (14271319717560).

Almost surely, 2^{204238442178904} is an apocalyptic number.

It is an amenable number.

204238442178904 is an abundant number, since it is smaller than the sum of its proper divisors (252443788783016).

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

204238442178904 is a wasteful number, since it uses less digits than its factorization.

204238442178904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158570219119 (or 158570219115 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 58.

The spelling of 204238442178904 in words is "two hundred four trillion, two hundred thirty-eight billion, four hundred forty-two million, one hundred seventy-eight thousand, nine hundred four".