206848634857 has 8 divisors (see below), whose sum is σ = 207791496000. Its totient is φ = 205907689680.

The previous prime is 206848634833. The next prime is 206848634911. The reversal of 206848634857 is 758436848602.

It is a happy number.

206848634857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206848634857 - 2¹⁹ = 206848110569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206848634795 and 206848634804.

It is not an unprimeable number, because it can be changed into a prime (206848635857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262357 + ... + 694642.

It is an arithmetic number, because the mean of its divisors is an integer number (25973937000).

Almost surely, 2^206848634857 is an apocalyptic number.

It is an amenable number.

206848634857 is a deficient number, since it is larger than the sum of its proper divisors (942861143).

206848634857 is an equidigital number, since it uses as much as digits as its factorization.

206848634857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957983.

The product of its (nonzero) digits is 61931520, while the sum is 61.

The spelling of 206848634857 in words is "two hundred six billion, eight hundred forty-eight million, six hundred thirty-four thousand, eight hundred fifty-seven".