6688227732 has 12 divisors (see below), whose sum is σ = 15605864736. Its totient is φ = 2229409240.

The previous prime is 6688227727. The next prime is 6688227743. The reversal of 6688227732 is 2377228866.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278676144 + ... + 278676167.

It is an arithmetic number, because the mean of its divisors is an integer number (1300488728).

Almost surely, 2^6688227732 is an apocalyptic number.

It is an amenable number.

6688227732 is an abundant number, since it is smaller than the sum of its proper divisors (8917637004).

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

6688227732 is a wasteful number, since it uses less digits than its factorization.

6688227732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557352318 (or 557352316 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The square root of 6688227732 is about 81781.5855312185. The cubic root of 6688227732 is about 1884.0988482717.

The spelling of 6688227732 in words is "six billion, six hundred eighty-eight million, two hundred twenty-seven thousand, seven hundred thirty-two".