11199895743888 has 120 divisors (see below), whose sum is σ = 31575696724728. Its totient is φ = 3705724901376.

The previous prime is 11199895743857. The next prime is 11199895743889. The reversal of 11199895743888 is 88834759899111.

11199895743888 is a `hidden beast` number, since 1 + 1 + 1 + 9 + 9 + 8 + 9 + 574 + 38 + 8 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2409548361984 + 8790347381904 = 1552272^2 + 2964852^2 .

It is not an unprimeable number, because it can be changed into a prime (11199895743889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355344706 + ... + 355376222.

Almost surely, 2^{11199895743888} is an apocalyptic number.

11199895743888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11199895743888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15787848362364).

11199895743888 is an abundant number, since it is smaller than the sum of its proper divisors (20375800980840).

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

11199895743888 is a wasteful number, since it uses less digits than its factorization.

11199895743888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49681 (or 49672 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 81.

The spelling of 11199895743888 in words is "eleven trillion, one hundred ninety-nine billion, eight hundred ninety-five million, seven hundred forty-three thousand, eight hundred eighty-eight".