204180976834 has 8 divisors (see below), whose sum is σ = 306655748028. Its totient is φ = 101962394160.

The previous prime is 204180976799. The next prime is 204180976837. The reversal of 204180976834 is 438679081402.

It can be written as a sum of positive squares in 2 ways, for example, as 204136794225 + 44182609 = 451815^2 + 6647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204180976837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64045137 + ... + 64048324.

Almost surely, 2^204180976834 is an apocalyptic number.

204180976834 is a deficient number, since it is larger than the sum of its proper divisors (102474771194).

204180976834 is a wasteful number, since it uses less digits than its factorization.

204180976834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128094260.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 204180976834 in words is "two hundred four billion, one hundred eighty million, nine hundred seventy-six thousand, eight hundred thirty-four".