543451774505953 has 2 divisors, whose sum is σ = 543451774505954. Its totient is φ = 543451774505952.

The previous prime is 543451774505881. The next prime is 543451774506013. The reversal of 543451774505953 is 359505477154345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542204637242944 + 1247137263009 = 23285288^2 + 1116753^2 .

It is a cyclic number.

It is not a de Polignac number, because 543451774505953 - 2⁴¹ = 541252751250401 is a prime.

It is not a weakly prime, because it can be changed into another prime (543451774205953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271725887252976 + 271725887252977.

It is an arithmetic number, because the mean of its divisors is an integer number (271725887252977).

Almost surely, 2^{543451774505953} is an apocalyptic number.

It is an amenable number.

543451774505953 is a deficient number, since it is larger than the sum of its proper divisors (1).

543451774505953 is an equidigital number, since it uses as much as digits as its factorization.

543451774505953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800000, while the sum is 67.

The spelling of 543451774505953 in words is "five hundred forty-three trillion, four hundred fifty-one billion, seven hundred seventy-four million, five hundred five thousand, nine hundred fifty-three".