128663447591083 has 2 divisors, whose sum is σ = 128663447591084. Its totient is φ = 128663447591082.

The previous prime is 128663447591059. The next prime is 128663447591191. The reversal of 128663447591083 is 380195744366821.

It is a weak prime.

It is an emirp because it is prime and its reverse (380195744366821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128663447591083 - 2⁴⁵ = 93479075502251 is a prime.

It is a super-2 number, since 2×128663447591083² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128663447591383) 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, 64331723795541 + 64331723795542.

It is an arithmetic number, because the mean of its divisors is an integer number (64331723795542).

It is a 1-persistent number, because it is pandigital, but 2⋅128663447591083 = 257326895182166 is not.

Almost surely, 2^{128663447591083} is an apocalyptic number.

128663447591083 is a deficient number, since it is larger than the sum of its proper divisors (1).

128663447591083 is an equidigital number, since it uses as much as digits as its factorization.

128663447591083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209018880, while the sum is 67.

The spelling of 128663447591083 in words is "one hundred twenty-eight trillion, six hundred sixty-three billion, four hundred forty-seven million, five hundred ninety-one thousand, eighty-three".