543273673141961 has 2 divisors, whose sum is σ = 543273673141962. Its totient is φ = 543273673141960.

The previous prime is 543273673141957. The next prime is 543273673142009. The reversal of 543273673141961 is 169141376372345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447286291932736 + 95987381209225 = 21149144^2 + 9797315^2 .

It is a cyclic number.

It is not a de Polignac number, because 543273673141961 - 2² = 543273673141957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 543273673141894 and 543273673141903.

It is not a weakly prime, because it can be changed into another prime (543273673141061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271636836570980 + 271636836570981.

It is an arithmetic number, because the mean of its divisors is an integer number (271636836570981).

Almost surely, 2^{543273673141961} is an apocalyptic number.

It is an amenable number.

543273673141961 is a deficient number, since it is larger than the sum of its proper divisors (1).

543273673141961 is an equidigital number, since it uses as much as digits as its factorization.

543273673141961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 62.

The spelling of 543273673141961 in words is "five hundred forty-three trillion, two hundred seventy-three billion, six hundred seventy-three million, one hundred forty-one thousand, nine hundred sixty-one".