204331403129978 has 32 divisors (see below), whose sum is σ = 340780924323840. Its totient is φ = 91488060604080.

The previous prime is 204331403129957. The next prime is 204331403129993. The reversal of 204331403129978 is 879921304133402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2016881900 + ... + 2016983207.

It is an arithmetic number, because the mean of its divisors is an integer number (10649403885120).

Almost surely, 2^{204331403129978} is an apocalyptic number.

204331403129978 is a deficient number, since it is larger than the sum of its proper divisors (136449521193862).

204331403129978 is a wasteful number, since it uses less digits than its factorization.

204331403129978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033865202.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 204331403129978 in words is "two hundred four trillion, three hundred thirty-one billion, four hundred three million, one hundred twenty-nine thousand, nine hundred seventy-eight".