88544644589 has 2 divisors, whose sum is σ = 88544644590. Its totient is φ = 88544644588.

The previous prime is 88544644577. The next prime is 88544644609. The reversal of 88544644589 is 98544644588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54234491689 + 34310152900 = 232883^2 + 185230^2 .

It is a cyclic number.

It is not a de Polignac number, because 88544644589 - 2⁸ = 88544644333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88544640589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44272322294 + 44272322295.

It is an arithmetic number, because the mean of its divisors is an integer number (44272322295).

Almost surely, 2^88544644589 is an apocalyptic number.

It is an amenable number.

88544644589 is a deficient number, since it is larger than the sum of its proper divisors (1).

88544644589 is an equidigital number, since it uses as much as digits as its factorization.

88544644589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176947200, while the sum is 65.

Subtracting 88544644589 from its reverse (98544644588), we obtain a palindrome (9999999999).

The spelling of 88544644589 in words is "eighty-eight billion, five hundred forty-four million, six hundred forty-four thousand, five hundred eighty-nine".