80799793398691 has 2 divisors, whose sum is σ = 80799793398692. Its totient is φ = 80799793398690.

The previous prime is 80799793398607. The next prime is 80799793398719. The reversal of 80799793398691 is 19689339799708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80799793398691 - 2¹¹ = 80799793396643 is a prime.

It is a super-2 number, since 2×80799793398691² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80799793398791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40399896699345 + 40399896699346.

It is an arithmetic number, because the mean of its divisors is an integer number (40399896699346).

Almost surely, 2^{80799793398691} is an apocalyptic number.

80799793398691 is a deficient number, since it is larger than the sum of its proper divisors (1).

80799793398691 is an equidigital number, since it uses as much as digits as its factorization.

80799793398691 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 88.

The spelling of 80799793398691 in words is "eighty trillion, seven hundred ninety-nine billion, seven hundred ninety-three million, three hundred ninety-eight thousand, six hundred ninety-one".