11718228288 has 56 divisors (see below), whose sum is σ = 33389446048. Its totient is φ = 3605607936.

The previous prime is 11718228271. The next prime is 11718228323. The reversal of 11718228288 is 88282281711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2344906 + ... + 2349897.

It is an arithmetic number, because the mean of its divisors is an integer number (596240108).

Almost surely, 2^11718228288 is an apocalyptic number.

It is an amenable number.

11718228288 is an abundant number, since it is smaller than the sum of its proper divisors (21671217760).

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

11718228288 is a wasteful number, since it uses less digits than its factorization.

11718228288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694831 (or 4694821 counting only the distinct ones).

The product of its digits is 229376, while the sum is 48.

The spelling of 11718228288 in words is "eleven billion, seven hundred eighteen million, two hundred twenty-eight thousand, two hundred eighty-eight".