80746843393 has 2 divisors, whose sum is σ = 80746843394. Its totient is φ = 80746843392.

The previous prime is 80746843351. The next prime is 80746843421. The reversal of 80746843393 is 39334864708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47196693504 + 33550149889 = 217248^2 + 183167^2 .

It is a cyclic number.

It is not a de Polignac number, because 80746843393 - 2⁹ = 80746842881 is a prime.

It is not a weakly prime, because it can be changed into another prime (80746843493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40373421696 + 40373421697.

It is an arithmetic number, because the mean of its divisors is an integer number (40373421697).

Almost surely, 2^80746843393 is an apocalyptic number.

It is an amenable number.

80746843393 is a deficient number, since it is larger than the sum of its proper divisors (1).

80746843393 is an equidigital number, since it uses as much as digits as its factorization.

80746843393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 80746843393 in words is "eighty billion, seven hundred forty-six million, eight hundred forty-three thousand, three hundred ninety-three".