68681748 has 12 divisors (see below), whose sum is σ = 160257440. Its totient is φ = 22893912.

The previous prime is 68681741. The next prime is 68681759. The reversal of 68681748 is 84718686.

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

It is a junction number, because it is equal to n+sod(n) for n = 68681697 and 68681706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68681741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861728 + ... + 2861751.

Almost surely, 2^68681748 is an apocalyptic number.

It is an amenable number.

68681748 is an abundant number, since it is smaller than the sum of its proper divisors (91575692).

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

68681748 is a wasteful number, since it uses less digits than its factorization.

68681748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723486 (or 5723484 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 68681748 is about 8287.4452034388. The cubic root of 68681748 is about 409.5250260139.

The spelling of 68681748 in words is "sixty-eight million, six hundred eighty-one thousand, seven hundred forty-eight".