8190010009 has 2 divisors, whose sum is σ = 8190010010. Its totient is φ = 8190010008.

The previous prime is 8190009991. The next prime is 8190010013. The reversal of 8190010009 is 9000100918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6658070409 + 1531939600 = 81597^2 + 39140^2 .

It is a cyclic number.

It is not a de Polignac number, because 8190010009 - 2¹⁷ = 8189878937 is a prime.

It is not a weakly prime, because it can be changed into another prime (8190010099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095005004 + 4095005005.

It is an arithmetic number, because the mean of its divisors is an integer number (4095005005).

Almost surely, 2^8190010009 is an apocalyptic number.

It is an amenable number.

8190010009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8190010009 is an equidigital number, since it uses as much as digits as its factorization.

8190010009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 8190010009 is about 90498.6740731598. The cubic root of 8190010009 is about 2015.7104353920.

The spelling of 8190010009 in words is "eight billion, one hundred ninety million, ten thousand, nine".