68231716 has 36 divisors (see below), whose sum is σ = 139447308. Its totient is φ = 29127168.

The previous prime is 68231687. The next prime is 68231741. The reversal of 68231716 is 61713286.

It can be written as a sum of positive squares in 2 ways, for example, as 46104100 + 22127616 = 6790^2 + 4704^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 65536 + ... + 66568.

Almost surely, 2^68231716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68231716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69723654).

68231716 is an abundant number, since it is smaller than the sum of its proper divisors (71215592).

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

68231716 is a wasteful number, since it uses less digits than its factorization.

68231716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1379 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 68231716 is about 8260.2491487848. The cubic root of 68231716 is about 408.6286045746.

The spelling of 68231716 in words is "sixty-eight million, two hundred thirty-one thousand, seven hundred sixteen".