8258719009 has 2 divisors, whose sum is σ = 8258719010. Its totient is φ = 8258719008.

The previous prime is 8258718971. The next prime is 8258719031. The reversal of 8258719009 is 9009178528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7608723984 + 649995025 = 87228^2 + 25495^2 .

It is a cyclic number.

It is not a de Polignac number, because 8258719009 - 2⁹ = 8258718497 is a prime.

It is not a weakly prime, because it can be changed into another prime (8258719109) 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, 4129359504 + 4129359505.

It is an arithmetic number, because the mean of its divisors is an integer number (4129359505).

Almost surely, 2^8258719009 is an apocalyptic number.

It is an amenable number.

8258719009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8258719009 is an equidigital number, since it uses as much as digits as its factorization.

8258719009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 8258719009 is about 90877.4945132182. The cubic root of 8258719009 is about 2021.3315901592.

The spelling of 8258719009 in words is "eight billion, two hundred fifty-eight million, seven hundred nineteen thousand, nine".