11238512844 has 144 divisors (see below), whose sum is σ = 30030739200. Its totient is φ = 3260604672.

The previous prime is 11238512833. The next prime is 11238512869. The reversal of 11238512844 is 44821583211.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10133362 + ... + 10134470.

It is an arithmetic number, because the mean of its divisors is an integer number (208546800).

Almost surely, 2^11238512844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11238512844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15015369600).

11238512844 is an abundant number, since it is smaller than the sum of its proper divisors (18792226356).

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

11238512844 is a wasteful number, since it uses less digits than its factorization.

11238512844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424 (or 1409 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The spelling of 11238512844 in words is "eleven billion, two hundred thirty-eight million, five hundred twelve thousand, eight hundred forty-four".