2128528654960 has 20 divisors (see below), whose sum is σ = 4948829122968. Its totient is φ = 851411461952.

The previous prime is 2128528654913. The next prime is 2128528654961. The reversal of 2128528654960 is 694568258212.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2128528654895 and 2128528654904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128528654961) 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, 13303304014 + ... + 13303304173.

Almost surely, 2^{2128528654960} is an apocalyptic number.

2128528654960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2128528654960 is an abundant number, since it is smaller than the sum of its proper divisors (2820300468008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128528654960 is a wasteful number, since it uses less digits than its factorization.

2128528654960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26606608200 (or 26606608194 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 2128528654960 in words is "two trillion, one hundred twenty-eight billion, five hundred twenty-eight million, six hundred fifty-four thousand, nine hundred sixty".