263703817441 has 27 divisors (see below), whose sum is σ = 280070147539. Its totient is φ = 248273024912.

The previous prime is 263703817427. The next prime is 263703817459. The reversal of 263703817441 is 144718307362.

The square root of 263703817441 is 513521.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17350421841 + 246353395600 = 131721^2 + 496340^2 .

It is not a de Polignac number, because 263703817441 - 2¹⁷ = 263703686369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263703817391 and 263703817400.

It is not an unprimeable number, because it can be changed into a prime (263703817841) 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 in 26 ways as a sum of consecutive naturals, for example, 980311455 + ... + 980311723.

Almost surely, 2^263703817441 is an apocalyptic number.

263703817441 is the 513521-st square number.

263703817441 is the 256761-st centered octagonal number.

It is an amenable number.

263703817441 is a deficient number, since it is larger than the sum of its proper divisors (16366330098).

263703817441 is an frugal number, since it uses more digits than its factorization.

263703817441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 263703817441 in words is "two hundred sixty-three billion, seven hundred three million, eight hundred seventeen thousand, four hundred forty-one".