263354573244941 has 2 divisors, whose sum is σ = 263354573244942. Its totient is φ = 263354573244940.

The previous prime is 263354573244803. The next prime is 263354573244953. The reversal of 263354573244941 is 149442375453362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210631668054025 + 52722905190916 = 14513155^2 + 7261054^2 .

It is a cyclic number.

It is not a de Polignac number, because 263354573244941 - 2¹⁴ = 263354573228557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263354573244241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131677286622470 + 131677286622471.

It is an arithmetic number, because the mean of its divisors is an integer number (131677286622471).

Almost surely, 2^{263354573244941} is an apocalyptic number.

It is an amenable number.

263354573244941 is a deficient number, since it is larger than the sum of its proper divisors (1).

263354573244941 is an equidigital number, since it uses as much as digits as its factorization.

263354573244941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 62.

The spelling of 263354573244941 in words is "two hundred sixty-three trillion, three hundred fifty-four billion, five hundred seventy-three million, two hundred forty-four thousand, nine hundred forty-one".