206496786469 has 2 divisors, whose sum is σ = 206496786470. Its totient is φ = 206496786468.

The previous prime is 206496786451. The next prime is 206496786487. The reversal of 206496786469 is 964687694602.

It is a balanced prime because it is at equal distance from previous prime (206496786451) and next prime (206496786487).

It can be written as a sum of positive squares in only one way, i.e., 203479481569 + 3017304900 = 451087^2 + 54930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206496786469 is a prime.

It is a super-2 number, since 2×206496786469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206496786449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103248393234 + 103248393235.

It is an arithmetic number, because the mean of its divisors is an integer number (103248393235).

Almost surely, 2^206496786469 is an apocalyptic number.

It is an amenable number.

206496786469 is a deficient number, since it is larger than the sum of its proper divisors (1).

206496786469 is an equidigital number, since it uses as much as digits as its factorization.

206496786469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188116992, while the sum is 67.

The spelling of 206496786469 in words is "two hundred six billion, four hundred ninety-six million, seven hundred eighty-six thousand, four hundred sixty-nine".