8844858889991 has 2 divisors, whose sum is σ = 8844858889992. Its totient is φ = 8844858889990.

The previous prime is 8844858889967. The next prime is 8844858890047. The reversal of 8844858889991 is 1999888584488.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8844858889991 - 2²⁶ = 8844791781127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8844858889897 and 8844858889906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8844858889961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4422429444995 + 4422429444996.

It is an arithmetic number, because the mean of its divisors is an integer number (4422429444996).

Almost surely, 2^{8844858889991} is an apocalyptic number.

8844858889991 is a deficient number, since it is larger than the sum of its proper divisors (1).

8844858889991 is an equidigital number, since it uses as much as digits as its factorization.

8844858889991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15288238080, while the sum is 89.

The spelling of 8844858889991 in words is "eight trillion, eight hundred forty-four billion, eight hundred fifty-eight million, eight hundred eighty-nine thousand, nine hundred ninety-one".