206298640927 has 4 divisors (see below), whose sum is σ = 206443616800. Its totient is φ = 206153665056.

The previous prime is 206298640897. The next prime is 206298640949. The reversal of 206298640927 is 729046892602.

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-206298640927 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 (206298640627) 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, 72485802 + ... + 72488647.

It is an arithmetic number, because the mean of its divisors is an integer number (51610904200).

Almost surely, 2^206298640927 is an apocalyptic number.

206298640927 is a deficient number, since it is larger than the sum of its proper divisors (144975873).

206298640927 is a wasteful number, since it uses less digits than its factorization.

206298640927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144975872.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 206298640927 in words is "two hundred six billion, two hundred ninety-eight million, six hundred forty thousand, nine hundred twenty-seven".