80143717109 has 2 divisors, whose sum is σ = 80143717110. Its totient is φ = 80143717108.

The previous prime is 80143717081. The next prime is 80143717111. The reversal of 80143717109 is 90171734108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75872702500 + 4271014609 = 275450^2 + 65353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80143717109 is a prime.

Together with 80143717111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80143717009) 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, 40071858554 + 40071858555.

It is an arithmetic number, because the mean of its divisors is an integer number (40071858555).

Almost surely, 2^80143717109 is an apocalyptic number.

It is an amenable number.

80143717109 is a deficient number, since it is larger than the sum of its proper divisors (1).

80143717109 is an equidigital number, since it uses as much as digits as its factorization.

80143717109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 80143717109 in words is "eighty billion, one hundred forty-three million, seven hundred seventeen thousand, one hundred nine".