11440681408 has 56 divisors (see below), whose sum is σ = 24758578880. Its totient is φ = 5213445120.

The previous prime is 11440681397. The next prime is 11440681463. The reversal of 11440681408 is 80418604411.

11440681408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 21303 + ... + 152758.

It is an arithmetic number, because the mean of its divisors is an integer number (442117480).

Almost surely, 2^11440681408 is an apocalyptic number.

It is an amenable number.

11440681408 is an abundant number, since it is smaller than the sum of its proper divisors (13317897472).

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

11440681408 is a wasteful number, since it uses less digits than its factorization.

11440681408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174165 (or 174155 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 11440681408 in words is "eleven billion, four hundred forty million, six hundred eighty-one thousand, four hundred eight".