68417133443 has 2 divisors, whose sum is σ = 68417133444. Its totient is φ = 68417133442.

The previous prime is 68417133431. The next prime is 68417133451. The reversal of 68417133443 is 34433171486.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68417133443 - 2¹⁶ = 68417067907 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 68417133394 and 68417133403.

It is not a weakly prime, because it can be changed into another prime (68417133643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34208566721 + 34208566722.

It is an arithmetic number, because the mean of its divisors is an integer number (34208566722).

Almost surely, 2^68417133443 is an apocalyptic number.

68417133443 is a deficient number, since it is larger than the sum of its proper divisors (1).

68417133443 is an equidigital number, since it uses as much as digits as its factorization.

68417133443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The spelling of 68417133443 in words is "sixty-eight billion, four hundred seventeen million, one hundred thirty-three thousand, four hundred forty-three".