206769141309 has 16 divisors (see below), whose sum is σ = 281219599872. Its totient is φ = 135088419648.

The previous prime is 206769141251. The next prime is 206769141311. The reversal of 206769141309 is 903141967602.

It is not a de Polignac number, because 206769141309 - 2¹⁷ = 206769010237 is a prime.

It is a super-2 number, since 2×206769141309² (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 (206769141109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616222 + ... + 890655.

It is an arithmetic number, because the mean of its divisors is an integer number (17576224992).

Almost surely, 2^206769141309 is an apocalyptic number.

It is an amenable number.

206769141309 is a deficient number, since it is larger than the sum of its proper divisors (74450458563).

206769141309 is a wasteful number, since it uses less digits than its factorization.

206769141309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507796.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 206769141309 in words is "two hundred six billion, seven hundred sixty-nine million, one hundred forty-one thousand, three hundred nine".