7128559081115 has 4 divisors (see below), whose sum is σ = 8554270897344. Its totient is φ = 5702847264888.

The previous prime is 7128559081067. The next prime is 7128559081151. The reversal of 7128559081115 is 5111809558217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7128559081115 - 2⁸ = 7128559080859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712855908107 + ... + 712855908116.

It is an arithmetic number, because the mean of its divisors is an integer number (2138567724336).

Almost surely, 2^{7128559081115} is an apocalyptic number.

7128559081115 is a deficient number, since it is larger than the sum of its proper divisors (1425711816229).

7128559081115 is a wasteful number, since it uses less digits than its factorization.

7128559081115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425711816228.

The product of its (nonzero) digits is 1008000, while the sum is 53.

The spelling of 7128559081115 in words is "seven trillion, one hundred twenty-eight billion, five hundred fifty-nine million, eighty-one thousand, one hundred fifteen".