2691114668269 has 4 divisors (see below), whose sum is σ = 2695198302720. Its totient is φ = 2687031033820.

The previous prime is 2691114668267. The next prime is 2691114668369. The reversal of 2691114668269 is 9628664111962.

It is a happy number.

2691114668269 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2691114668269 - 2¹ = 2691114668267 is a prime.

It is a super-2 number, since 2×2691114668269² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691114668267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2041816237 + ... + 2041817554.

It is an arithmetic number, because the mean of its divisors is an integer number (673799575680).

Almost surely, 2^{2691114668269} is an apocalyptic number.

It is an amenable number.

2691114668269 is a deficient number, since it is larger than the sum of its proper divisors (4083634451).

2691114668269 is an equidigital number, since it uses as much as digits as its factorization.

2691114668269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083634450.

The product of its digits is 13436928, while the sum is 61.

The spelling of 2691114668269 in words is "two trillion, six hundred ninety-one billion, one hundred fourteen million, six hundred sixty-eight thousand, two hundred sixty-nine".