68519443 has 2 divisors, whose sum is σ = 68519444. Its totient is φ = 68519442.

The previous prime is 68519413. The next prime is 68519447. The reversal of 68519443 is 34491586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68519443 - 2²⁵ = 34965011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68519396 and 68519405.

It is not a weakly prime, because it can be changed into another prime (68519447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34259721 + 34259722.

It is an arithmetic number, because the mean of its divisors is an integer number (34259722).

Almost surely, 2^68519443 is an apocalyptic number.

68519443 is a deficient number, since it is larger than the sum of its proper divisors (1).

68519443 is an equidigital number, since it uses as much as digits as its factorization.

68519443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 68519443 is about 8277.6471898723. The cubic root of 68519443 is about 409.2021824251.

The spelling of 68519443 in words is "sixty-eight million, five hundred nineteen thousand, four hundred forty-three".