11649894611 has 16 divisors (see below), whose sum is σ = 12499135488. Its totient is φ = 10831233600.

The previous prime is 11649894577. The next prime is 11649894617.

11649894611 is nontrivially palindromic in base 10.

11649894611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11649894611 - 2¹⁰ = 11649893587 is a prime.

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 11649894611.

It is not an unprimeable number, because it can be changed into a prime (11649894617) 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 15 ways as a sum of consecutive naturals, for example, 232760 + ... + 278346.

It is an arithmetic number, because the mean of its divisors is an integer number (781195968).

Almost surely, 2^11649894611 is an apocalyptic number.

11649894611 is a deficient number, since it is larger than the sum of its proper divisors (849240877).

11649894611 is a wasteful number, since it uses less digits than its factorization.

11649894611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45922.

The product of its digits is 373248, while the sum is 50.

The spelling of 11649894611 in words is "eleven billion, six hundred forty-nine million, eight hundred ninety-four thousand, six hundred eleven".