11940817896 has 192 divisors, whose sum is σ = 38605507200. Its totient is φ = 3262892544.

The previous prime is 11940817891. The next prime is 11940817897. The reversal of 11940817896 is 69871804911.

It is not an unprimeable number, because it can be changed into a prime (11940817891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1094806 + ... + 1105658.

It is an arithmetic number, because the mean of its divisors is an integer number (201070350).

Almost surely, 2^11940817896 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 11940817896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19302753600).

11940817896 is an abundant number, since it is smaller than the sum of its proper divisors (26664689304).

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

11940817896 is a wasteful number, since it uses less digits than its factorization.

11940817896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10968 (or 10961 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 11940817896 in words is "eleven billion, nine hundred forty million, eight hundred seventeen thousand, eight hundred ninety-six".