11289139008 has 168 divisors, whose sum is σ = 34971666912. Its totient is φ = 3204504576.

The previous prime is 11289139007. The next prime is 11289139021. The reversal of 11289139008 is 80093198211.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289139003) by changing a digit.

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, 1473235 + ... + 1480877.

It is an arithmetic number, because the mean of its divisors is an integer number (208164684).

Almost surely, 2^11289139008 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 11289139008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17485833456).

11289139008 is an abundant number, since it is smaller than the sum of its proper divisors (23682527904).

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

11289139008 is a wasteful number, since it uses less digits than its factorization.

11289139008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829 (or 7812 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 11289139008 in words is "eleven billion, two hundred eighty-nine million, one hundred thirty-nine thousand, eight".