8844408880891 has 2 divisors, whose sum is σ = 8844408880892. Its totient is φ = 8844408880890.

The previous prime is 8844408880877. The next prime is 8844408880919. The reversal of 8844408880891 is 1980888044488.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8844408880891 - 2⁹ = 8844408880379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8844408880891.

It is not a weakly prime, because it can be changed into another prime (8844408880831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4422204440445 + 4422204440446.

It is an arithmetic number, because the mean of its divisors is an integer number (4422204440446).

Almost surely, 2^{8844408880891} is an apocalyptic number.

8844408880891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8844408880891 is an equidigital number, since it uses as much as digits as its factorization.

8844408880891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150994944, while the sum is 70.

The spelling of 8844408880891 in words is "eight trillion, eight hundred forty-four billion, four hundred eight million, eight hundred eighty thousand, eight hundred ninety-one".