11138042444 has 24 divisors (see below), whose sum is σ = 19572990528. Its totient is φ = 5545809360.

The previous prime is 11138042437. The next prime is 11138042471. The reversal of 11138042444 is 44424083111.

It is a self number, because there is not a number n which added to its sum of digits gives 11138042444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963539 + ... + 975029.

It is an arithmetic number, because the mean of its divisors is an integer number (815541272).

Almost surely, 2^11138042444 is an apocalyptic number.

It is an amenable number.

11138042444 is a deficient number, since it is larger than the sum of its proper divisors (8434948084).

11138042444 is a wasteful number, since it uses less digits than its factorization.

11138042444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12485 (or 12483 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 11138042444 in words is "eleven billion, one hundred thirty-eight million, forty-two thousand, four hundred forty-four".