545430445423 has 2 divisors, whose sum is σ = 545430445424. Its totient is φ = 545430445422.

The previous prime is 545430445363. The next prime is 545430445453. The reversal of 545430445423 is 324544034545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545430445423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545430445423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545430445453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272715222711 + 272715222712.

It is an arithmetic number, because the mean of its divisors is an integer number (272715222712).

Almost surely, 2^545430445423 is an apocalyptic number.

545430445423 is a deficient number, since it is larger than the sum of its proper divisors (1).

545430445423 is an equidigital number, since it uses as much as digits as its factorization.

545430445423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304000, while the sum is 43.

Adding to 545430445423 its reverse (324544034545), we get a palindrome (869974479968).

The spelling of 545430445423 in words is "five hundred forty-five billion, four hundred thirty million, four hundred forty-five thousand, four hundred twenty-three".