11218393275769 has 9 divisors (see below), whose sum is σ = 11238024790863. Its totient is φ = 11198796012432.

The previous prime is 11218393275703. The next prime is 11218393275779. The reversal of 11218393275769 is 96757239381211.

The square root of 11218393275769 is 3349387.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11004061314169 + 214331961600 = 3317237^2 + 462960^2 .

It is not a de Polignac number, because 11218393275769 - 2¹⁷ = 11218393144697 is a prime.

It is a super-2 number, since 2×11218393275769² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11218393275769.

It is not an unprimeable number, because it can be changed into a prime (11218393275779) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2153653237 + ... + 2153658445.

It is an arithmetic number, because the mean of its divisors is an integer number (1248669421207).

Almost surely, 2^{11218393275769} is an apocalyptic number.

11218393275769 is the 3349387-th square number.

11218393275769 is the 1674694-th centered octagonal number.

It is an amenable number.

11218393275769 is a deficient number, since it is larger than the sum of its proper divisors (19631515094).

11218393275769 is an frugal number, since it uses more digits than its factorization.

11218393275769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704 (or 5852 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 64.

Multiplying 11218393275769 by its sum of digits (64), we get a square (717977169649216 = 26795096²).

The spelling of 11218393275769 in words is "eleven trillion, two hundred eighteen billion, three hundred ninety-three million, two hundred seventy-five thousand, seven hundred sixty-nine".