4026631009 has 2 divisors, whose sum is σ = 4026631010. Its totient is φ = 4026631008.

The previous prime is 4026631001. The next prime is 4026631019. The reversal of 4026631009 is 9001366204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3847472784 + 179158225 = 62028^2 + 13385^2 .

It is a cyclic number.

It is not a de Polignac number, because 4026631009 - 2³ = 4026631001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4026631001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013315504 + 2013315505.

It is an arithmetic number, because the mean of its divisors is an integer number (2013315505).

Almost surely, 2^4026631009 is an apocalyptic number.

It is an amenable number.

4026631009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4026631009 is an equidigital number, since it uses as much as digits as its factorization.

4026631009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 4026631009 is about 63455.7405519784. The cubic root of 4026631009 is about 1590.9161036652.

The spelling of 4026631009 in words is "four billion, twenty-six million, six hundred thirty-one thousand, nine".