80799793396643 has 2 divisors, whose sum is σ = 80799793396644. Its totient is φ = 80799793396642.

The previous prime is 80799793396631. The next prime is 80799793396697. The reversal of 80799793396643 is 34669339799708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80799793396643 - 2¹⁰ = 80799793395619 is a prime.

It is a super-2 number, since 2×80799793396643² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80799793393643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40399896698321 + 40399896698322.

It is an arithmetic number, because the mean of its divisors is an integer number (40399896698322).

Almost surely, 2^{80799793396643} is an apocalyptic number.

80799793396643 is a deficient number, since it is larger than the sum of its proper divisors (1).

80799793396643 is an equidigital number, since it uses as much as digits as its factorization.

80799793396643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9999593856, while the sum is 83.

The spelling of 80799793396643 in words is "eighty trillion, seven hundred ninety-nine billion, seven hundred ninety-three million, three hundred ninety-six thousand, six hundred forty-three".