688126112 has 24 divisors (see below), whose sum is σ = 1355711616. Its totient is φ = 343818432.

The previous prime is 688126091. The next prime is 688126129. The reversal of 688126112 is 211621886.

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, 43283 + ... + 57005.

It is an arithmetic number, because the mean of its divisors is an integer number (56487984).

Almost surely, 2^688126112 is an apocalyptic number.

It is an amenable number.

688126112 is a deficient number, since it is larger than the sum of its proper divisors (667585504).

688126112 is a wasteful number, since it uses less digits than its factorization.

688126112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15300 (or 15292 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 688126112 is about 26232.1579745167. The cubic root of 688126112 is about 882.8549290180.

Adding to 688126112 its reverse (211621886), we get a palindrome (899747998).

The spelling of 688126112 in words is "six hundred eighty-eight million, one hundred twenty-six thousand, one hundred twelve".