6688442352 has 40 divisors (see below), whose sum is σ = 17317534464. Its totient is φ = 2224441024.

The previous prime is 6688442309. The next prime is 6688442357. The reversal of 6688442352 is 2532448866.

It is a super-2 number, since 2×6688442352² = 89470522192054583808, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688442357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136008 + ... + 178535.

Almost surely, 2^6688442352 is an apocalyptic number.

It is an amenable number.

6688442352 is an abundant number, since it is smaller than the sum of its proper divisors (10629092112).

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

6688442352 is a wasteful number, since it uses less digits than its factorization.

6688442352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314997 (or 314991 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 48.

The square root of 6688442352 is about 81782.8976742693. The cubic root of 6688442352 is about 1884.1190011426.

The spelling of 6688442352 in words is "six billion, six hundred eighty-eight million, four hundred forty-two thousand, three hundred fifty-two".