86282478389 has 2 divisors, whose sum is σ = 86282478390. Its totient is φ = 86282478388.

The previous prime is 86282478319. The next prime is 86282478427. The reversal of 86282478389 is 98387428268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46025266225 + 40257212164 = 214535^2 + 200642^2 .

It is a cyclic number.

It is not a de Polignac number, because 86282478389 - 2³² = 81987511093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86282478319) 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, 43141239194 + 43141239195.

It is an arithmetic number, because the mean of its divisors is an integer number (43141239195).

Almost surely, 2^86282478389 is an apocalyptic number.

It is an amenable number.

86282478389 is a deficient number, since it is larger than the sum of its proper divisors (1).

86282478389 is an equidigital number, since it uses as much as digits as its factorization.

86282478389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74317824, while the sum is 65.

The spelling of 86282478389 in words is "eighty-six billion, two hundred eighty-two million, four hundred seventy-eight thousand, three hundred eighty-nine".