128568000001 has 4 divisors (see below), whose sum is σ = 146934857152. Its totient is φ = 110201142852.

The previous prime is 128567999939. The next prime is 128568000047. The reversal of 128568000001 is 100000865821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100000865821 = 1613 ⋅61996817.

It is a cyclic number.

It is not a de Polignac number, because 128568000001 - 2¹⁵ = 128567967233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128568010001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9183428565 + ... + 9183428578.

It is an arithmetic number, because the mean of its divisors is an integer number (36733714288).

Almost surely, 2^128568000001 is an apocalyptic number.

It is an amenable number.

128568000001 is a deficient number, since it is larger than the sum of its proper divisors (18366857151).

128568000001 is an equidigital number, since it uses as much as digits as its factorization.

128568000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366857150.

The product of its (nonzero) digits is 3840, while the sum is 31.

Adding to 128568000001 its reverse (100000865821), we get a palindrome (228568865822).

The spelling of 128568000001 in words is "one hundred twenty-eight billion, five hundred sixty-eight million, one", and thus it is an aban number.