68313128 has 32 divisors (see below), whose sum is σ = 143942400. Its totient is φ = 30157248.

The previous prime is 68313121. The next prime is 68313163. The reversal of 68313128 is 82131386.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68313094 and 68313103.

It is not an unprimeable number, because it can be changed into a prime (68313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11888 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (4498200).

Almost surely, 2^68313128 is an apocalyptic number.

It is an amenable number.

68313128 is an abundant number, since it is smaller than the sum of its proper divisors (75629272).

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

68313128 is a wasteful number, since it uses less digits than its factorization.

68313128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601 (or 28597 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 68313128 is about 8265.1756182189. The cubic root of 68313128 is about 408.7910610367.

The spelling of 68313128 in words is "sixty-eight million, three hundred thirteen thousand, one hundred twenty-eight".