8128855344959 has 8 divisors (see below), whose sum is σ = 8361578427888. Its totient is φ = 7896817751040.

The previous prime is 8128855344949. The next prime is 8128855344971. The reversal of 8128855344959 is 9594435588218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8128855344959 - 2¹⁶ = 8128855279423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8128855344892 and 8128855344901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128855344949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171348197 + ... + 171395630.

It is an arithmetic number, because the mean of its divisors is an integer number (1045197303486).

Almost surely, 2^{8128855344959} is an apocalyptic number.

8128855344959 is a deficient number, since it is larger than the sum of its proper divisors (232723082929).

8128855344959 is a wasteful number, since it uses less digits than its factorization.

8128855344959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342744505.

The product of its digits is 497664000, while the sum is 71.

The spelling of 8128855344959 in words is "eight trillion, one hundred twenty-eight billion, eight hundred fifty-five million, three hundred forty-four thousand, nine hundred fifty-nine".