545918141689 has 2 divisors, whose sum is σ = 545918141690. Its totient is φ = 545918141688.

The previous prime is 545918141641. The next prime is 545918141711. The reversal of 545918141689 is 986141819545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432591652089 + 113326489600 = 657717^2 + 336640^2 .

It is a cyclic number.

It is not a de Polignac number, because 545918141689 - 2⁹ = 545918141177 is a prime.

It is not a weakly prime, because it can be changed into another prime (545918151689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272959070844 + 272959070845.

It is an arithmetic number, because the mean of its divisors is an integer number (272959070845).

Almost surely, 2^545918141689 is an apocalyptic number.

It is an amenable number.

545918141689 is a deficient number, since it is larger than the sum of its proper divisors (1).

545918141689 is an equidigital number, since it uses as much as digits as its factorization.

545918141689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12441600, while the sum is 61.

The spelling of 545918141689 in words is "five hundred forty-five billion, nine hundred eighteen million, one hundred forty-one thousand, six hundred eighty-nine".