11995844448 has 144 divisors (see below), whose sum is σ = 36679910400. Its totient is φ = 3422732544.

The previous prime is 11995844431. The next prime is 11995844467. The reversal of 11995844448 is 84444859911.

It is a super-2 number, since 2×11995844448² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4999153 + ... + 5001551.

It is an arithmetic number, because the mean of its divisors is an integer number (254721600).

Almost surely, 2^11995844448 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 11995844448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18339955200).

11995844448 is an abundant number, since it is smaller than the sum of its proper divisors (24684065952).

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

11995844448 is a wasteful number, since it uses less digits than its factorization.

11995844448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3474 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 57.

The spelling of 11995844448 in words is "eleven billion, nine hundred ninety-five million, eight hundred forty-four thousand, four hundred forty-eight".