266782223419 has 2 divisors, whose sum is σ = 266782223420. Its totient is φ = 266782223418.

The previous prime is 266782223399. The next prime is 266782223443. The reversal of 266782223419 is 914322287662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266782223419 - 2¹⁷ = 266782092347 is a prime.

It is a super-2 number, since 2×266782223419² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266782223489) 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, 133391111709 + 133391111710.

It is an arithmetic number, because the mean of its divisors is an integer number (133391111710).

Almost surely, 2^266782223419 is an apocalyptic number.

266782223419 is a deficient number, since it is larger than the sum of its proper divisors (1).

266782223419 is an equidigital number, since it uses as much as digits as its factorization.

266782223419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The spelling of 266782223419 in words is "two hundred sixty-six billion, seven hundred eighty-two million, two hundred twenty-three thousand, four hundred nineteen".