263223326357 has 2 divisors, whose sum is σ = 263223326358. Its totient is φ = 263223326356.

The previous prime is 263223326287. The next prime is 263223326393. The reversal of 263223326357 is 753623322362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160327367281 + 102895959076 = 400409^2 + 320774^2 .

It is a cyclic number.

It is not a de Polignac number, because 263223326357 - 2¹² = 263223322261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263223316357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131611663178 + 131611663179.

It is an arithmetic number, because the mean of its divisors is an integer number (131611663179).

Almost surely, 2^263223326357 is an apocalyptic number.

It is an amenable number.

263223326357 is a deficient number, since it is larger than the sum of its proper divisors (1).

263223326357 is an equidigital number, since it uses as much as digits as its factorization.

263223326357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 44.

The spelling of 263223326357 in words is "two hundred sixty-three billion, two hundred twenty-three million, three hundred twenty-six thousand, three hundred fifty-seven".