2118540269 has 4 divisors (see below), whose sum is σ = 2129186400. Its totient is φ = 2107894140.

The previous prime is 2118540257. The next prime is 2118540271. The reversal of 2118540269 is 9620458112.

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 2118540269 - 2¹⁶ = 2118474733 is a prime.

It is a super-2 number, since 2×2118540269² = 8976425742749184722, which 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 (2118540239) 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, 5322767 + ... + 5323164.

It is an arithmetic number, because the mean of its divisors is an integer number (532296600).

Almost surely, 2^2118540269 is an apocalyptic number.

It is an amenable number.

2118540269 is a deficient number, since it is larger than the sum of its proper divisors (10646131).

2118540269 is a wasteful number, since it uses less digits than its factorization.

2118540269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646130.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2118540269 is about 46027.6033375626. The cubic root of 2118540269 is about 1284.3367446285.

The spelling of 2118540269 in words is "two billion, one hundred eighteen million, five hundred forty thousand, two hundred sixty-nine".