206398869343 has 4 divisors (see below), whose sum is σ = 206514630448. Its totient is φ = 206283108240.

The previous prime is 206398869323. The next prime is 206398869379. The reversal of 206398869343 is 343968893602.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206398869343 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 (206398869323) 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, 57877878 + ... + 57881443.

It is an arithmetic number, because the mean of its divisors is an integer number (51628657612).

Almost surely, 2^206398869343 is an apocalyptic number.

206398869343 is a deficient number, since it is larger than the sum of its proper divisors (115761105).

206398869343 is a wasteful number, since it uses less digits than its factorization.

206398869343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115761104.

The product of its (nonzero) digits is 40310784, while the sum is 61.

The spelling of 206398869343 in words is "two hundred six billion, three hundred ninety-eight million, eight hundred sixty-nine thousand, three hundred forty-three".