80719369019 has 2 divisors, whose sum is σ = 80719369020. Its totient is φ = 80719369018.

The previous prime is 80719368937. The next prime is 80719369037. The reversal of 80719369019 is 91096391708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80719369019 - 2³² = 76424401723 is a prime.

It is a super-2 number, since 2×80719369019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80719069019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40359684509 + 40359684510.

It is an arithmetic number, because the mean of its divisors is an integer number (40359684510).

Almost surely, 2^80719369019 is an apocalyptic number.

80719369019 is a deficient number, since it is larger than the sum of its proper divisors (1).

80719369019 is an equidigital number, since it uses as much as digits as its factorization.

80719369019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 80719369019 in words is "eighty billion, seven hundred nineteen million, three hundred sixty-nine thousand, nineteen".