263603576672273 has 2 divisors, whose sum is σ = 263603576672274. Its totient is φ = 263603576672272.

The previous prime is 263603576672171. The next prime is 263603576672281. The reversal of 263603576672273 is 372276675306362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148367795919424 + 115235780752849 = 12180632^2 + 10734793^2 .

It is a cyclic number.

It is not a de Polignac number, because 263603576672273 - 2⁸ = 263603576672017 is a prime.

It is not a weakly prime, because it can be changed into another prime (263603576672773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131801788336136 + 131801788336137.

It is an arithmetic number, because the mean of its divisors is an integer number (131801788336137).

Almost surely, 2^{263603576672273} is an apocalyptic number.

It is an amenable number.

263603576672273 is a deficient number, since it is larger than the sum of its proper divisors (1).

263603576672273 is an equidigital number, since it uses as much as digits as its factorization.

263603576672273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480090240, while the sum is 65.

The spelling of 263603576672273 in words is "two hundred sixty-three trillion, six hundred three billion, five hundred seventy-six million, six hundred seventy-two thousand, two hundred seventy-three".