11223445567787 has 2 divisors, whose sum is σ = 11223445567788. Its totient is φ = 11223445567786.

The previous prime is 11223445567699. The next prime is 11223445567921. The reversal of 11223445567787 is 78776554432211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11223445567787 - 2¹⁴ = 11223445551403 is a prime.

It is not a weakly prime, because it can be changed into another prime (11223445567487) 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, 5611722783893 + 5611722783894.

It is an arithmetic number, because the mean of its divisors is an integer number (5611722783894).

Almost surely, 2^{11223445567787} is an apocalyptic number.

11223445567787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223445567787 is an equidigital number, since it uses as much as digits as its factorization.

11223445567787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79027200, while the sum is 62.

Adding to 11223445567787 its reverse (78776554432211), we get a palindrome (89999999999998).

The spelling of 11223445567787 in words is "eleven trillion, two hundred twenty-three billion, four hundred forty-five million, five hundred sixty-seven thousand, seven hundred eighty-seven".