80559531149 has 2 divisors, whose sum is σ = 80559531150. Its totient is φ = 80559531148.

The previous prime is 80559531127. The next prime is 80559531187. The reversal of 80559531149 is 94113595508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77167284100 + 3392247049 = 277790^2 + 58243^2 .

It is a cyclic number.

It is not a de Polignac number, because 80559531149 - 2⁸ = 80559530893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80559531097 and 80559531106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80559533149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40279765574 + 40279765575.

It is an arithmetic number, because the mean of its divisors is an integer number (40279765575).

Almost surely, 2^80559531149 is an apocalyptic number.

It is an amenable number.

80559531149 is a deficient number, since it is larger than the sum of its proper divisors (1).

80559531149 is an equidigital number, since it uses as much as digits as its factorization.

80559531149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 80559531149 in words is "eighty billion, five hundred fifty-nine million, five hundred thirty-one thousand, one hundred forty-nine".