78006489599 has 2 divisors, whose sum is σ = 78006489600. Its totient is φ = 78006489598.

The previous prime is 78006489593. The next prime is 78006489607. The reversal of 78006489599 is 99598460087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78006489599 - 2²⁰ = 78005441023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78006489593) 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, 39003244799 + 39003244800.

It is an arithmetic number, because the mean of its divisors is an integer number (39003244800).

Almost surely, 2^78006489599 is an apocalyptic number.

78006489599 is a deficient number, since it is larger than the sum of its proper divisors (1).

78006489599 is an equidigital number, since it uses as much as digits as its factorization.

78006489599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 78006489599 in words is "seventy-eight billion, six million, four hundred eighty-nine thousand, five hundred ninety-nine".