206728427243 has 8 divisors (see below), whose sum is σ = 222776814288. Its totient is φ = 190700925984.

The previous prime is 206728427197. The next prime is 206728427251. The reversal of 206728427243 is 342724827602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206728427243 - 2¹⁴ = 206728410859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206728427263) 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, 5200880 + ... + 5240477.

It is an arithmetic number, because the mean of its divisors is an integer number (27847101786).

Almost surely, 2^206728427243 is an apocalyptic number.

206728427243 is a deficient number, since it is larger than the sum of its proper divisors (16048387045).

206728427243 is a wasteful number, since it uses less digits than its factorization.

206728427243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10442893.

The product of its (nonzero) digits is 1806336, while the sum is 47.

The spelling of 206728427243 in words is "two hundred six billion, seven hundred twenty-eight million, four hundred twenty-seven thousand, two hundred forty-three".