545442333749 has 2 divisors, whose sum is σ = 545442333750. Its totient is φ = 545442333748.

The previous prime is 545442333719. The next prime is 545442333757. The reversal of 545442333749 is 947333244545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280536537649 + 264905796100 = 529657^2 + 514690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545442333749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545442333749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545442333719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272721166874 + 272721166875.

It is an arithmetic number, because the mean of its divisors is an integer number (272721166875).

Almost surely, 2^545442333749 is an apocalyptic number.

It is an amenable number.

545442333749 is a deficient number, since it is larger than the sum of its proper divisors (1).

545442333749 is an equidigital number, since it uses as much as digits as its factorization.

545442333749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 53.

The spelling of 545442333749 in words is "five hundred forty-five billion, four hundred forty-two million, three hundred thirty-three thousand, seven hundred forty-nine".