7438917009 has 32 divisors (see below), whose sum is σ = 10186525440. Its totient is φ = 4827513600.

The previous prime is 7438916987. The next prime is 7438917011. The reversal of 7438917009 is 9007198347.

7438917009 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7438917009 - 2⁵ = 7438916977 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7438917019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6052207 + ... + 6053435.

It is an arithmetic number, because the mean of its divisors is an integer number (318328920).

Almost surely, 2^7438917009 is an apocalyptic number.

It is an amenable number.

7438917009 is a deficient number, since it is larger than the sum of its proper divisors (2747608431).

7438917009 is a wasteful number, since it uses less digits than its factorization.

7438917009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 7438917009 is about 86249.1565697891. The cubic root of 7438917009 is about 1952.1052878442.

The spelling of 7438917009 in words is "seven billion, four hundred thirty-eight million, nine hundred seventeen thousand, nine".