263040347417 has 2 divisors, whose sum is σ = 263040347418. Its totient is φ = 263040347416.

The previous prime is 263040347411. The next prime is 263040347441. The reversal of 263040347417 is 714743040362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260578599961 + 2461747456 = 510469^2 + 49616^2 .

It is a cyclic number.

It is not a de Polignac number, because 263040347417 - 2⁸ = 263040347161 is a prime.

It is not a weakly prime, because it can be changed into another prime (263040347411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131520173708 + 131520173709.

It is an arithmetic number, because the mean of its divisors is an integer number (131520173709).

Almost surely, 2^263040347417 is an apocalyptic number.

It is an amenable number.

263040347417 is a deficient number, since it is larger than the sum of its proper divisors (1).

263040347417 is an equidigital number, since it uses as much as digits as its factorization.

263040347417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 41.

Adding to 263040347417 its reverse (714743040362), we get a palindrome (977783387779).

The spelling of 263040347417 in words is "two hundred sixty-three billion, forty million, three hundred forty-seven thousand, four hundred seventeen".