80809230406217 has 2 divisors, whose sum is σ = 80809230406218. Its totient is φ = 80809230406216.

The previous prime is 80809230406159. The next prime is 80809230406249. The reversal of 80809230406217 is 71260403290808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42057248344336 + 38751982061881 = 6485156^2 + 6225109^2 .

It is a cyclic number.

It is not a de Polignac number, because 80809230406217 - 2⁸ = 80809230405961 is a prime.

It is a super-2 number, since 2×80809230406217² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80809230406277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40404615203108 + 40404615203109.

It is an arithmetic number, because the mean of its divisors is an integer number (40404615203109).

Almost surely, 2^{80809230406217} is an apocalyptic number.

It is an amenable number.

80809230406217 is a deficient number, since it is larger than the sum of its proper divisors (1).

80809230406217 is an equidigital number, since it uses as much as digits as its factorization.

80809230406217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 80809230406217 in words is "eighty trillion, eight hundred nine billion, two hundred thirty million, four hundred six thousand, two hundred seventeen".