11531654344 has 128 divisors (see below), whose sum is σ = 26735385600. Its totient is φ = 4552692480.

The previous prime is 11531654339. The next prime is 11531654377. The reversal of 11531654344 is 44345613511.

11531654344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14045454 + ... + 14046274.

It is an arithmetic number, because the mean of its divisors is an integer number (208870200).

Almost surely, 2^11531654344 is an apocalyptic number.

11531654344 is a gapful number since it is divisible by the number (14) 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 11531654344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13367692800).

11531654344 is an abundant number, since it is smaller than the sum of its proper divisors (15203731256).

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

11531654344 is a wasteful number, since it uses less digits than its factorization.

11531654344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1199 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 11531654344 in words is "eleven billion, five hundred thirty-one million, six hundred fifty-four thousand, three hundred forty-four".