8071720043 has 2 divisors, whose sum is σ = 8071720044. Its totient is φ = 8071720042.

The previous prime is 8071720031. The next prime is 8071720079. The reversal of 8071720043 is 3400271708.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8071720043 - 2⁸ = 8071719787 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 8071719991 and 8071720009.

It is not a weakly prime, because it can be changed into another prime (8071723043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4035860021 + 4035860022.

It is an arithmetic number, because the mean of its divisors is an integer number (4035860022).

Almost surely, 2^8071720043 is an apocalyptic number.

8071720043 is a deficient number, since it is larger than the sum of its proper divisors (1).

8071720043 is an equidigital number, since it uses as much as digits as its factorization.

8071720043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 8071720043 is about 89842.7517554978. The cubic root of 8071720043 is about 2005.9588983824.

The spelling of 8071720043 in words is "eight billion, seventy-one million, seven hundred twenty thousand, forty-three".