11747081144 has 8 divisors (see below), whose sum is σ = 22025777160. Its totient is φ = 5873540568.

The previous prime is 11747081117. The next prime is 11747081147. The reversal of 11747081144 is 44118074711.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11747081098 and 11747081107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11747081147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734192564 + ... + 734192579.

It is an arithmetic number, because the mean of its divisors is an integer number (2753222145).

Almost surely, 2^11747081144 is an apocalyptic number.

It is an amenable number.

11747081144 is a deficient number, since it is larger than the sum of its proper divisors (10278696016).

11747081144 is a wasteful number, since it uses less digits than its factorization.

11747081144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468385149 (or 1468385145 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 38.

The spelling of 11747081144 in words is "eleven billion, seven hundred forty-seven million, eighty-one thousand, one hundred forty-four".