545444449427 has 2 divisors, whose sum is σ = 545444449428. Its totient is φ = 545444449426.

The previous prime is 545444449399. The next prime is 545444449453. The reversal of 545444449427 is 724944444545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545444449427 - 2⁸ = 545444449171 is a prime.

It is not a weakly prime, because it can be changed into another prime (545444449327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272722224713 + 272722224714.

It is an arithmetic number, because the mean of its divisors is an integer number (272722224714).

Almost surely, 2^545444449427 is an apocalyptic number.

545444449427 is a deficient number, since it is larger than the sum of its proper divisors (1).

545444449427 is an equidigital number, since it uses as much as digits as its factorization.

545444449427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51609600, while the sum is 56.

The spelling of 545444449427 in words is "five hundred forty-five billion, four hundred forty-four million, four hundred forty-nine thousand, four hundred twenty-seven".