68257268 has 6 divisors (see below), whose sum is σ = 119450226. Its totient is φ = 34128632.

The previous prime is 68257247. The next prime is 68257279. The reversal of 68257268 is 86275286.

It can be written as a sum of positive squares in only one way, i.e., 52591504 + 15665764 = 7252^2 + 3958^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8532155 + ... + 8532162.

It is an arithmetic number, because the mean of its divisors is an integer number (19908371).

Almost surely, 2^68257268 is an apocalyptic number.

It is an amenable number.

68257268 is a deficient number, since it is larger than the sum of its proper divisors (51192958).

68257268 is a wasteful number, since it uses less digits than its factorization.

68257268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064321 (or 17064319 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 68257268 is about 8261.7956885897. The cubic root of 68257268 is about 408.6796071269.

The spelling of 68257268 in words is "sixty-eight million, two hundred fifty-seven thousand, two hundred sixty-eight".