7049440009 has 2 divisors, whose sum is σ = 7049440010. Its totient is φ = 7049440008.

The previous prime is 7049440007. The next prime is 7049440037. The reversal of 7049440009 is 9000449407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6566671225 + 482768784 = 81035^2 + 21972^2 .

It is a cyclic number.

It is not a de Polignac number, because 7049440009 - 2¹ = 7049440007 is a prime.

Together with 7049440007, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7049440009.

It is not a weakly prime, because it can be changed into another prime (7049440007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524720004 + 3524720005.

It is an arithmetic number, because the mean of its divisors is an integer number (3524720005).

Almost surely, 2^7049440009 is an apocalyptic number.

It is an amenable number.

7049440009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7049440009 is an equidigital number, since it uses as much as digits as its factorization.

7049440009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7049440009 is about 83960.9433546336. The cubic root of 7049440009 is about 1917.4242088231.

The spelling of 7049440009 in words is "seven billion, forty-nine million, four hundred forty thousand, nine".