128798189447063 has 2 divisors, whose sum is σ = 128798189447064. Its totient is φ = 128798189447062.

The previous prime is 128798189446999. The next prime is 128798189447203. The reversal of 128798189447063 is 360744981897821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128798189447063 - 2⁶ = 128798189446999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128798189447563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64399094723531 + 64399094723532.

It is an arithmetic number, because the mean of its divisors is an integer number (64399094723532).

Almost surely, 2^{128798189447063} is an apocalyptic number.

128798189447063 is a deficient number, since it is larger than the sum of its proper divisors (1).

128798189447063 is an equidigital number, since it uses as much as digits as its factorization.

128798189447063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1170505728, while the sum is 77.

The spelling of 128798189447063 in words is "one hundred twenty-eight trillion, seven hundred ninety-eight billion, one hundred eighty-nine million, four hundred forty-seven thousand, sixty-three".