206382993329 has 4 divisors (see below), whose sum is σ = 215356166976. Its totient is φ = 197409819684.

The previous prime is 206382993319. The next prime is 206382993361. The reversal of 206382993329 is 923399283602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923399283602 = 2 ⋅461699641801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206382993329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206382993319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4486586789 + ... + 4486586834.

It is an arithmetic number, because the mean of its divisors is an integer number (53839041744).

Almost surely, 2^206382993329 is an apocalyptic number.

It is an amenable number.

206382993329 is a deficient number, since it is larger than the sum of its proper divisors (8973173647).

206382993329 is an equidigital number, since it uses as much as digits as its factorization.

206382993329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973173646.

The product of its (nonzero) digits is 7558272, while the sum is 56.

The spelling of 206382993329 in words is "two hundred six billion, three hundred eighty-two million, nine hundred ninety-three thousand, three hundred twenty-nine".