86567131828481 has 2 divisors, whose sum is σ = 86567131828482. Its totient is φ = 86567131828480.

The previous prime is 86567131828459. The next prime is 86567131828537. The reversal of 86567131828481 is 18482813176568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65727988998400 + 20839142830081 = 8107280^2 + 4564991^2 .

It is a cyclic number.

It is not a de Polignac number, because 86567131828481 - 2⁴² = 82169085317377 is a prime.

It is a super-2 number, since 2×86567131828481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86567131728481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43283565914240 + 43283565914241.

It is an arithmetic number, because the mean of its divisors is an integer number (43283565914241).

Almost surely, 2^{86567131828481} is an apocalyptic number.

It is an amenable number.

86567131828481 is a deficient number, since it is larger than the sum of its proper divisors (1).

86567131828481 is an equidigital number, since it uses as much as digits as its factorization.

86567131828481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123863040, while the sum is 68.

The spelling of 86567131828481 in words is "eighty-six trillion, five hundred sixty-seven billion, one hundred thirty-one million, eight hundred twenty-eight thousand, four hundred eighty-one".