8779274489 has 2 divisors, whose sum is σ = 8779274490. Its totient is φ = 8779274488.

The previous prime is 8779274477. The next prime is 8779274507. The reversal of 8779274489 is 9844729778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8656441600 + 122832889 = 93040^2 + 11083^2 .

It is a cyclic number.

It is not a de Polignac number, because 8779274489 - 2⁴ = 8779274473 is a prime.

It is a super-2 number, since 2×8779274489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8779274459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4389637244 + 4389637245.

It is an arithmetic number, because the mean of its divisors is an integer number (4389637245).

Almost surely, 2^8779274489 is an apocalyptic number.

It is an amenable number.

8779274489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8779274489 is an equidigital number, since it uses as much as digits as its factorization.

8779274489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 65.

The square root of 8779274489 is about 93697.7827325706. The cubic root of 8779274489 is about 2062.9381588800.

The spelling of 8779274489 in words is "eight billion, seven hundred seventy-nine million, two hundred seventy-four thousand, four hundred eighty-nine".