2128528765453 has 2 divisors, whose sum is σ = 2128528765454. Its totient is φ = 2128528765452.

The previous prime is 2128528765399. The next prime is 2128528765487. The reversal of 2128528765453 is 3545678258212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1163287359364 + 965241406089 = 1078558^2 + 982467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128528765453 - 2⁹ = 2128528764941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128528768453) 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 as a sum of consecutive naturals, namely, 1064264382726 + 1064264382727.

It is an arithmetic number, because the mean of its divisors is an integer number (1064264382727).

Almost surely, 2^{2128528765453} is an apocalyptic number.

It is an amenable number.

2128528765453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128528765453 is an equidigital number, since it uses as much as digits as its factorization.

2128528765453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256000, while the sum is 58.

The spelling of 2128528765453 in words is "two trillion, one hundred twenty-eight billion, five hundred twenty-eight million, seven hundred sixty-five thousand, four hundred fifty-three".