2545468645453 has 8 divisors (see below), whose sum is σ = 2546681096088. Its totient is φ = 2544256486464.

The previous prime is 2545468645441. The next prime is 2545468645457. The reversal of 2545468645453 is 3545468645452.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 423849175369 + 2121619470084 = 651037^2 + 1456578^2 .

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 2545468645453 - 2²⁵ = 2545435091021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2545468645391 and 2545468645400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545468645457) 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, 18495651 + ... + 18632767.

It is an arithmetic number, because the mean of its divisors is an integer number (318335137011).

Almost surely, 2^{2545468645453} is an apocalyptic number.

It is an amenable number.

2545468645453 is a deficient number, since it is larger than the sum of its proper divisors (1212450635).

2545468645453 is a wasteful number, since it uses less digits than its factorization.

2545468645453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145823.

The product of its digits is 276480000, while the sum is 61.

Subtracting 2545468645453 from its reverse (3545468645452), we obtain a palindrome (999999999999).

The spelling of 2545468645453 in words is "two trillion, five hundred forty-five billion, four hundred sixty-eight million, six hundred forty-five thousand, four hundred fifty-three".