8789218049 has 2 divisors, whose sum is σ = 8789218050. Its totient is φ = 8789218048.

The previous prime is 8789218003. The next prime is 8789218111. The reversal of 8789218049 is 9408129878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8757216400 + 32001649 = 93580^2 + 5657^2 .

It is a cyclic number.

It is not a de Polignac number, because 8789218049 - 2⁸ = 8789217793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8789217985 and 8789218003.

It is not a weakly prime, because it can be changed into another prime (8789211049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4394609024 + 4394609025.

It is an arithmetic number, because the mean of its divisors is an integer number (4394609025).

Almost surely, 2^8789218049 is an apocalyptic number.

It is an amenable number.

8789218049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8789218049 is an equidigital number, since it uses as much as digits as its factorization.

8789218049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The square root of 8789218049 is about 93750.8295909962. The cubic root of 8789218049 is about 2063.7167049817.

The spelling of 8789218049 in words is "eight billion, seven hundred eighty-nine million, two hundred eighteen thousand, forty-nine".