204682107465978 has 16 divisors (see below), whose sum is σ = 409985404947360. Its totient is φ = 68123837486096.

The previous prime is 204682107465977. The next prime is 204682107466093. The reversal of 204682107465978 is 879564701286402.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204682107465977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25882913025 + ... + 25882920932.

It is an arithmetic number, because the mean of its divisors is an integer number (25624087809210).

Almost surely, 2^{204682107465978} is an apocalyptic number.

204682107465978 is an abundant number, since it is smaller than the sum of its proper divisors (205303297481382).

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

204682107465978 is a wasteful number, since it uses less digits than its factorization.

204682107465978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51765834621.

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 204682107465978 in words is "two hundred four trillion, six hundred eighty-two billion, one hundred seven million, four hundred sixty-five thousand, nine hundred seventy-eight".