68544601 has 2 divisors, whose sum is σ = 68544602. Its totient is φ = 68544600.

The previous prime is 68544599. The next prime is 68544613. The reversal of 68544601 is 10644586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62394201 + 6150400 = 7899^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 68544601 - 2¹ = 68544599 is a prime.

Together with 68544599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68544631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34272300 + 34272301.

It is an arithmetic number, because the mean of its divisors is an integer number (34272301).

Almost surely, 2^68544601 is an apocalyptic number.

It is an amenable number.

68544601 is a deficient number, since it is larger than the sum of its proper divisors (1).

68544601 is an equidigital number, since it uses as much as digits as its factorization.

68544601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 68544601 is about 8279.1666851199. The cubic root of 68544601 is about 409.2522579869.

The spelling of 68544601 in words is "sixty-eight million, five hundred forty-four thousand, six hundred one".