11157423808 has 112 divisors (see below), whose sum is σ = 24700687200. Its totient is φ = 4977745920.

The previous prime is 11157423803. The next prime is 11157423817. The reversal of 11157423808 is 80832475111.

It is not an unprimeable number, because it can be changed into a prime (11157423803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441966 + ... + 1449682.

It is an arithmetic number, because the mean of its divisors is an integer number (220541850).

Almost surely, 2^11157423808 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 11157423808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12350343600).

11157423808 is an abundant number, since it is smaller than the sum of its proper divisors (13543263392).

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

11157423808 is a wasteful number, since it uses less digits than its factorization.

11157423808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7818 (or 7808 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

Adding to 11157423808 its reverse (80832475111), we get a palindrome (91989898919).

The spelling of 11157423808 in words is "eleven billion, one hundred fifty-seven million, four hundred twenty-three thousand, eight hundred eight".