82667407489 has 2 divisors, whose sum is σ = 82667407490. Its totient is φ = 82667407488.

The previous prime is 82667407469. The next prime is 82667407531. The reversal of 82667407489 is 98470476628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56517930225 + 26149477264 = 237735^2 + 161708^2 .

It is a cyclic number.

It is not a de Polignac number, because 82667407489 - 2⁹ = 82667406977 is a prime.

It is not a weakly prime, because it can be changed into another prime (82667407429) 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, 41333703744 + 41333703745.

It is an arithmetic number, because the mean of its divisors is an integer number (41333703745).

Almost surely, 2^82667407489 is an apocalyptic number.

It is an amenable number.

82667407489 is a deficient number, since it is larger than the sum of its proper divisors (1).

82667407489 is an equidigital number, since it uses as much as digits as its factorization.

82667407489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 82667407489 in words is "eighty-two billion, six hundred sixty-seven million, four hundred seven thousand, four hundred eighty-nine".