224781008891 has 2 divisors, whose sum is σ = 224781008892. Its totient is φ = 224781008890.

The previous prime is 224781008873. The next prime is 224781008929. The reversal of 224781008891 is 198800187422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224781008891 - 2¹⁸ = 224780746747 is a prime.

It is not a weakly prime, because it can be changed into another prime (224781008191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112390504445 + 112390504446.

It is an arithmetic number, because the mean of its divisors is an integer number (112390504446).

Almost surely, 2^224781008891 is an apocalyptic number.

224781008891 is a deficient number, since it is larger than the sum of its proper divisors (1).

224781008891 is an equidigital number, since it uses as much as digits as its factorization.

224781008891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 224781008891 in words is "two hundred twenty-four billion, seven hundred eighty-one million, eight thousand, eight hundred ninety-one".