545422321687 has 2 divisors, whose sum is σ = 545422321688. Its totient is φ = 545422321686.

The previous prime is 545422321621. The next prime is 545422321709. The reversal of 545422321687 is 786123224545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545422321687 - 2³¹ = 543274838039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545422321687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545422321187) 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, 272711160843 + 272711160844.

It is an arithmetic number, because the mean of its divisors is an integer number (272711160844).

Almost surely, 2^545422321687 is an apocalyptic number.

545422321687 is a deficient number, since it is larger than the sum of its proper divisors (1).

545422321687 is an equidigital number, since it uses as much as digits as its factorization.

545422321687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 49.

The spelling of 545422321687 in words is "five hundred forty-five billion, four hundred twenty-two million, three hundred twenty-one thousand, six hundred eighty-seven".