80436018017 has 2 divisors, whose sum is σ = 80436018018. Its totient is φ = 80436018016.

The previous prime is 80436017941. The next prime is 80436018037. The reversal of 80436018017 is 71081063408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58329978256 + 22106039761 = 241516^2 + 148681^2 .

It is a cyclic number.

It is not a de Polignac number, because 80436018017 - 2³² = 76141050721 is a prime.

It is a super-2 number, since 2×80436018017² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80436018037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40218009008 + 40218009009.

It is an arithmetic number, because the mean of its divisors is an integer number (40218009009).

Almost surely, 2^80436018017 is an apocalyptic number.

It is an amenable number.

80436018017 is a deficient number, since it is larger than the sum of its proper divisors (1).

80436018017 is an equidigital number, since it uses as much as digits as its factorization.

80436018017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 80436018017 in words is "eighty billion, four hundred thirty-six million, eighteen thousand, seventeen".