78584448587 has 2 divisors, whose sum is σ = 78584448588. Its totient is φ = 78584448586.

The previous prime is 78584448581. The next prime is 78584448601.

78584448587 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 78584448587 - 2⁸ = 78584448331 is a prime.

It is not a weakly prime, because it can be changed into another prime (78584448581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39292224293 + 39292224294.

It is an arithmetic number, because the mean of its divisors is an integer number (39292224294).

Almost surely, 2^78584448587 is an apocalyptic number.

78584448587 is a deficient number, since it is larger than the sum of its proper divisors (1).

78584448587 is an equidigital number, since it uses as much as digits as its factorization.

78584448587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 321126400, while the sum is 68.

The spelling of 78584448587 in words is "seventy-eight billion, five hundred eighty-four million, four hundred forty-eight thousand, five hundred eighty-seven".