68045743 has 2 divisors, whose sum is σ = 68045744. Its totient is φ = 68045742.

The previous prime is 68045741. The next prime is 68045749. The reversal of 68045743 is 34754086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68045743 - 2¹ = 68045741 is a prime.

Together with 68045741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68045741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34022871 + 34022872.

It is an arithmetic number, because the mean of its divisors is an integer number (34022872).

Almost surely, 2^68045743 is an apocalyptic number.

68045743 is a deficient number, since it is larger than the sum of its proper divisors (1).

68045743 is an equidigital number, since it uses as much as digits as its factorization.

68045743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 68045743 is about 8248.9843617260. The cubic root of 68045743 is about 408.2570127896.

The spelling of 68045743 in words is "sixty-eight million, forty-five thousand, seven hundred forty-three".