8787278849 has 2 divisors, whose sum is σ = 8787278850. Its totient is φ = 8787278848.

The previous prime is 8787278839. The next prime is 8787278887. The reversal of 8787278849 is 9488727878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8125760449 + 661518400 = 90143^2 + 25720^2 .

It is a cyclic number.

It is not a de Polignac number, because 8787278849 - 2³² = 4492311553 is a prime.

It is not a weakly prime, because it can be changed into another prime (8787278839) 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, 4393639424 + 4393639425.

It is an arithmetic number, because the mean of its divisors is an integer number (4393639425).

Almost surely, 2^8787278849 is an apocalyptic number.

It is an amenable number.

8787278849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8787278849 is an equidigital number, since it uses as much as digits as its factorization.

8787278849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101154816, while the sum is 68.

The square root of 8787278849 is about 93740.4867119859. The cubic root of 8787278849 is about 2063.5649184871.

It can be divided in two parts, 878 and 7278849, that added together give a palindrome (7279727).

The spelling of 8787278849 in words is "eight billion, seven hundred eighty-seven million, two hundred seventy-eight thousand, eight hundred forty-nine".