204487487343 has 18 divisors (see below), whose sum is σ = 305907240704. Its totient is φ = 131624124912.

The previous prime is 204487487317. The next prime is 204487487357. The reversal of 204487487343 is 343784784402.

204487487343 is a `hidden beast` number, since 2 + 0 + 44 + 87 + 487 + 3 + 43 = 666.

It is not a de Polignac number, because 204487487343 - 2⁶ = 204487487279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204487487343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204487487543) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13500655 + ... + 13515792.

Almost surely, 2^204487487343 is an apocalyptic number.

204487487343 is a deficient number, since it is larger than the sum of its proper divisors (101419753361).

204487487343 is a wasteful number, since it uses less digits than its factorization.

204487487343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016511 (or 27016479 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 54.

The spelling of 204487487343 in words is "two hundred four billion, four hundred eighty-seven million, four hundred eighty-seven thousand, three hundred forty-three".