11460821689 has 4 divisors (see below), whose sum is σ = 11462175220. Its totient is φ = 11459468160.

The previous prime is 11460821651. The next prime is 11460821693. The reversal of 11460821689 is 98612806411.

11460821689 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 98612806411 = 7 ⋅14087543773.

It can be written as a sum of positive squares in 2 ways, for example, as 3632111289 + 7828710400 = 60267^2 + 88480^2 .

It is a cyclic number.

It is not a de Polignac number, because 11460821689 - 2¹¹ = 11460819641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11460821629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663984 + ... + 681025.

It is an arithmetic number, because the mean of its divisors is an integer number (2865543805).

Almost surely, 2^11460821689 is an apocalyptic number.

It is an amenable number.

11460821689 is a deficient number, since it is larger than the sum of its proper divisors (1353531).

11460821689 is an equidigital number, since it uses as much as digits as its factorization.

11460821689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353530.

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 11460821689 in words is "eleven billion, four hundred sixty million, eight hundred twenty-one thousand, six hundred eighty-nine".