2128526621005 has 8 divisors (see below), whose sum is σ = 2688665205600. Its totient is φ = 1613199123216.

The previous prime is 2128526621003. The next prime is 2128526621017. The reversal of 2128526621005 is 5001266258212.

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 2128526621005 - 2¹ = 2128526621003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128526621003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11202771595 + ... + 11202771784.

It is an arithmetic number, because the mean of its divisors is an integer number (336083150700).

Almost surely, 2^{2128526621005} is an apocalyptic number.

It is an amenable number.

2128526621005 is a deficient number, since it is larger than the sum of its proper divisors (560138584595).

2128526621005 is a wasteful number, since it uses less digits than its factorization.

2128526621005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22405543403.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 2128526621005 in words is "two trillion, one hundred twenty-eight billion, five hundred twenty-six million, six hundred twenty-one thousand, five".