2645488453 has 2 divisors, whose sum is σ = 2645488454. Its totient is φ = 2645488452.

The previous prime is 2645488403. The next prime is 2645488457. The reversal of 2645488453 is 3548845462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1926068769 + 719419684 = 43887^2 + 26822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645488453 - 2⁹ = 2645487941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2645488397 and 2645488406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645488457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322744226 + 1322744227.

It is an arithmetic number, because the mean of its divisors is an integer number (1322744227).

Almost surely, 2^2645488453 is an apocalyptic number.

It is an amenable number.

2645488453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645488453 is an equidigital number, since it uses as much as digits as its factorization.

2645488453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3686400, while the sum is 49.

The square root of 2645488453 is about 51434.3120202847. The cubic root of 2645488453 is about 1383.0417490364.

The spelling of 2645488453 in words is "two billion, six hundred forty-five million, four hundred eighty-eight thousand, four hundred fifty-three".