263706111373 has 2 divisors, whose sum is σ = 263706111374. Its totient is φ = 263706111372.

The previous prime is 263706111353. The next prime is 263706111401. The reversal of 263706111373 is 373111607362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252604749604 + 11101361769 = 502598^2 + 105363^2 .

It is a cyclic number.

It is not a de Polignac number, because 263706111373 - 2¹⁷ = 263705980301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263706111353) 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, 131853055686 + 131853055687.

It is an arithmetic number, because the mean of its divisors is an integer number (131853055687).

Almost surely, 2^263706111373 is an apocalyptic number.

It is an amenable number.

263706111373 is a deficient number, since it is larger than the sum of its proper divisors (1).

263706111373 is an equidigital number, since it uses as much as digits as its factorization.

263706111373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 40.

The spelling of 263706111373 in words is "two hundred sixty-three billion, seven hundred six million, one hundred eleven thousand, three hundred seventy-three".