268811783417 has 2 divisors, whose sum is σ = 268811783418. Its totient is φ = 268811783416.

The previous prime is 268811783371. The next prime is 268811783473. The reversal of 268811783417 is 714387118862.

It is an a-pointer prime, because the next prime (268811783473) can be obtained adding 268811783417 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268758259561 + 53523856 = 518419^2 + 7316^2 .

It is a cyclic number.

It is not a de Polignac number, because 268811783417 - 2¹⁸ = 268811521273 is a prime.

It is not a weakly prime, because it can be changed into another prime (268811783117) 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, 134405891708 + 134405891709.

It is an arithmetic number, because the mean of its divisors is an integer number (134405891709).

Almost surely, 2^268811783417 is an apocalyptic number.

It is an amenable number.

268811783417 is a deficient number, since it is larger than the sum of its proper divisors (1).

268811783417 is an equidigital number, since it uses as much as digits as its factorization.

268811783417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 56.

The spelling of 268811783417 in words is "two hundred sixty-eight billion, eight hundred eleven million, seven hundred eighty-three thousand, four hundred seventeen".