2128368697559 has 8 divisors (see below), whose sum is σ = 2323487852112. Its totient is φ = 1937735040960.

The previous prime is 2128368697519. The next prime is 2128368697579. The reversal of 2128368697559 is 9557968638212.

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 2128368697559 - 2¹⁶ = 2128368632023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2128368697492 and 2128368697501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128368697519) 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, 1121373497 + ... + 1121375394.

It is an arithmetic number, because the mean of its divisors is an integer number (290435981514).

Almost surely, 2^{2128368697559} is an apocalyptic number.

2128368697559 is a deficient number, since it is larger than the sum of its proper divisors (195119154553).

2128368697559 is a wasteful number, since it uses less digits than its factorization.

2128368697559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242748977.

The product of its digits is 391910400, while the sum is 71.

The spelling of 2128368697559 in words is "two trillion, one hundred twenty-eight billion, three hundred sixty-eight million, six hundred ninety-seven thousand, five hundred fifty-nine".