204031438478 has 32 divisors (see below), whose sum is σ = 369828157440. Its totient is φ = 82468329120.

The previous prime is 204031438469. The next prime is 204031438483. The reversal of 204031438478 is 874834130402.

204031438478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660493 + ... + 1779128.

It is an arithmetic number, because the mean of its divisors is an integer number (11557129920).

Almost surely, 2^204031438478 is an apocalyptic number.

204031438478 is a deficient number, since it is larger than the sum of its proper divisors (165796718962).

204031438478 is a wasteful number, since it uses less digits than its factorization.

204031438478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439872.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 204031438478 in words is "two hundred four billion, thirty-one million, four hundred thirty-eight thousand, four hundred seventy-eight".