128586836117 has 2 divisors, whose sum is σ = 128586836118. Its totient is φ = 128586836116.

The previous prime is 128586836111. The next prime is 128586836143. The reversal of 128586836117 is 711638685821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68146580401 + 60440255716 = 261049^2 + 245846^2 .

It is a cyclic number.

It is not a de Polignac number, because 128586836117 - 2¹⁰ = 128586835093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128586836111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64293418058 + 64293418059.

It is an arithmetic number, because the mean of its divisors is an integer number (64293418059).

Almost surely, 2^128586836117 is an apocalyptic number.

It is an amenable number.

128586836117 is a deficient number, since it is larger than the sum of its proper divisors (1).

128586836117 is an equidigital number, since it uses as much as digits as its factorization.

128586836117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 56.

The spelling of 128586836117 in words is "one hundred twenty-eight billion, five hundred eighty-six million, eight hundred thirty-six thousand, one hundred seventeen".