11111223456769 has 2 divisors, whose sum is σ = 11111223456770. Its totient is φ = 11111223456768.

The previous prime is 11111223456737. The next prime is 11111223456803. The reversal of 11111223456769 is 96765432211111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10311966000625 + 799257456144 = 3211225^2 + 894012^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111223456769 - 2⁵ = 11111223456737 is a prime.

It is a super-2 number, since 2×11111223456769² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11111223454769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555611728384 + 5555611728385.

It is an arithmetic number, because the mean of its divisors is an integer number (5555611728385).

Almost surely, 2^{11111223456769} is an apocalyptic number.

It is an amenable number.

11111223456769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111223456769 is an equidigital number, since it uses as much as digits as its factorization.

11111223456769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 11111223456769 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred sixty-nine".