2545468645457 has 2 divisors, whose sum is σ = 2545468645458. Its totient is φ = 2545468645456.

The previous prime is 2545468645441. The next prime is 2545468645463. The reversal of 2545468645457 is 7545468645452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1784358968401 + 761109677056 = 1335799^2 + 872416^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545468645457 - 2⁴ = 2545468645441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545468645393 and 2545468645402.

It is not a weakly prime, because it can be changed into another prime (2545468645157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272734322728 + 1272734322729.

It is an arithmetic number, because the mean of its divisors is an integer number (1272734322729).

Almost surely, 2^{2545468645457} is an apocalyptic number.

It is an amenable number.

2545468645457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545468645457 is an equidigital number, since it uses as much as digits as its factorization.

2545468645457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120000, while the sum is 65.

The spelling of 2545468645457 in words is "two trillion, five hundred forty-five billion, four hundred sixty-eight million, six hundred forty-five thousand, four hundred fifty-seven".