68255688 has 16 divisors (see below), whose sum is σ = 170639280. Its totient is φ = 22751888.

The previous prime is 68255687. The next prime is 68255701. The reversal of 68255688 is 88655286.

It is not an unprimeable number, because it can be changed into a prime (68255683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421970 + ... + 1422017.

It is an arithmetic number, because the mean of its divisors is an integer number (10664955).

Almost surely, 2^68255688 is an apocalyptic number.

It is an amenable number.

68255688 is an abundant number, since it is smaller than the sum of its proper divisors (102383592).

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

68255688 is a wasteful number, since it uses less digits than its factorization.

68255688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843996 (or 2843992 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 68255688 is about 8261.7000671775. The cubic root of 68255688 is about 408.6764537691.

The spelling of 68255688 in words is "sixty-eight million, two hundred fifty-five thousand, six hundred eighty-eight".