204185350087 has 4 divisors (see below), whose sum is σ = 214931947480. Its totient is φ = 193438752696.

The previous prime is 204185350051. The next prime is 204185350093. The reversal of 204185350087 is 780053581402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 204185350087 - 2²⁷ = 204051132359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204185350387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5373298668 + ... + 5373298705.

It is an arithmetic number, because the mean of its divisors is an integer number (53732986870).

Almost surely, 2^204185350087 is an apocalyptic number.

204185350087 is a deficient number, since it is larger than the sum of its proper divisors (10746597393).

204185350087 is a wasteful number, since it uses less digits than its factorization.

204185350087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10746597392.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 204185350087 in words is "two hundred four billion, one hundred eighty-five million, three hundred fifty thousand, eighty-seven".