11818886688 has 192 divisors, whose sum is σ = 39547146240. Its totient is φ = 3363897600.

The previous prime is 11818886687. The next prime is 11818886699. The reversal of 11818886688 is 88668881811.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11818886683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1635403 + ... + 1642613.

It is an arithmetic number, because the mean of its divisors is an integer number (205974720).

Almost surely, 2^11818886688 is an apocalyptic number.

11818886688 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 11818886688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19773573120).

11818886688 is an abundant number, since it is smaller than the sum of its proper divisors (27728259552).

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

11818886688 is a wasteful number, since it uses less digits than its factorization.

11818886688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508 (or 7494 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 63.

The spelling of 11818886688 in words is "eleven billion, eight hundred eighteen million, eight hundred eighty-six thousand, six hundred eighty-eight".