11511488044 has 24 divisors (see below), whose sum is σ = 23765654528. Its totient is φ = 4774349520.

The previous prime is 11511488039. The next prime is 11511488057. The reversal of 11511488044 is 44088411511.

11511488044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11511487994 and 11511488012.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6630174 + ... + 6631909.

Almost surely, 2^11511488044 is an apocalyptic number.

11511488044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11511488044 is an abundant number, since it is smaller than the sum of its proper divisors (12254166484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11511488044 is a wasteful number, since it uses less digits than its factorization.

11511488044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262125 (or 13262123 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

Adding to 11511488044 its reverse (44088411511), we get a palindrome (55599899555).

The spelling of 11511488044 in words is "eleven billion, five hundred eleven million, four hundred eighty-eight thousand, forty-four".