128885444959 has 2 divisors, whose sum is σ = 128885444960. Its totient is φ = 128885444958.

The previous prime is 128885444939. The next prime is 128885445011. The reversal of 128885444959 is 959444588821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128885444959 - 2¹¹ = 128885442911 is a prime.

It is a super-2 number, since 2×128885444959² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128885444894 and 128885444903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128885444929) 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, 64442722479 + 64442722480.

It is an arithmetic number, because the mean of its divisors is an integer number (64442722480).

Almost surely, 2^128885444959 is an apocalyptic number.

128885444959 is a deficient number, since it is larger than the sum of its proper divisors (1).

128885444959 is an equidigital number, since it uses as much as digits as its factorization.

128885444959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132710400, while the sum is 67.

The spelling of 128885444959 in words is "one hundred twenty-eight billion, eight hundred eighty-five million, four hundred forty-four thousand, nine hundred fifty-nine".