206814740469 has 16 divisors (see below), whose sum is σ = 282007584768. Its totient is φ = 134757268272.

The previous prime is 206814740467. The next prime is 206814740477. The reversal of 206814740469 is 964047418602.

It is a happy number.

It is not a de Polignac number, because 206814740469 - 2¹ = 206814740467 is a prime.

It is a super-2 number, since 2×206814740469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206814740467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906277 + ... + 1111290.

It is an arithmetic number, because the mean of its divisors is an integer number (17625474048).

Almost surely, 2^206814740469 is an apocalyptic number.

It is an amenable number.

206814740469 is a deficient number, since it is larger than the sum of its proper divisors (75192844299).

206814740469 is a wasteful number, since it uses less digits than its factorization.

206814740469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018344.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 206814740469 in words is "two hundred six billion, eight hundred fourteen million, seven hundred forty thousand, four hundred sixty-nine".