204895398894 has 16 divisors (see below), whose sum is σ = 415907079168. Its totient is φ = 67279086072.

The previous prime is 204895398893. The next prime is 204895398901. The reversal of 204895398894 is 498893598402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204895398893) 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, 254844622 + ... + 254845425.

It is an arithmetic number, because the mean of its divisors is an integer number (25994192448).

Almost surely, 2^204895398894 is an apocalyptic number.

204895398894 is an abundant number, since it is smaller than the sum of its proper divisors (211011680274).

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

204895398894 is a wasteful number, since it uses less digits than its factorization.

204895398894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509690119.

The product of its (nonzero) digits is 179159040, while the sum is 69.

The spelling of 204895398894 in words is "two hundred four billion, eight hundred ninety-five million, three hundred ninety-eight thousand, eight hundred ninety-four".