68310569 has 2 divisors, whose sum is σ = 68310570. Its totient is φ = 68310568.

The previous prime is 68310563. The next prime is 68310611. The reversal of 68310569 is 96501386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67848169 + 462400 = 8237^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 68310569 - 2²⁰ = 67261993 is a prime.

It is a super-2 number, since 2×68310569² = 9332667674207522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68310563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34155284 + 34155285.

It is an arithmetic number, because the mean of its divisors is an integer number (34155285).

Almost surely, 2^68310569 is an apocalyptic number.

It is an amenable number.

68310569 is a deficient number, since it is larger than the sum of its proper divisors (1).

68310569 is an equidigital number, since it uses as much as digits as its factorization.

68310569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 68310569 is about 8265.0208106211. The cubic root of 68310569 is about 408.7859565547.

The spelling of 68310569 in words is "sixty-eight million, three hundred ten thousand, five hundred sixty-nine".