7421026009 has 2 divisors, whose sum is σ = 7421026010. Its totient is φ = 7421026008.

The previous prime is 7421026007. The next prime is 7421026013. The reversal of 7421026009 is 9006201247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123360000 + 297666009 = 84400^2 + 17253^2 .

It is an emirp because it is prime and its reverse (9006201247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7421026009 - 2¹ = 7421026007 is a prime.

Together with 7421026007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7421026007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710513004 + 3710513005.

It is an arithmetic number, because the mean of its divisors is an integer number (3710513005).

Almost surely, 2^7421026009 is an apocalyptic number.

It is an amenable number.

7421026009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421026009 is an equidigital number, since it uses as much as digits as its factorization.

7421026009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 7421026009 is about 86145.3771771881. The cubic root of 7421026009 is about 1950.5390584201.

The spelling of 7421026009 in words is "seven billion, four hundred twenty-one million, twenty-six thousand, nine".