30071280009 has 4 divisors (see below), whose sum is σ = 40095040016. Its totient is φ = 20047520004.

The previous prime is 30071280007. The next prime is 30071280023. The reversal of 30071280009 is 90008217003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30071280009 - 2¹ = 30071280007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30071280007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011879999 + ... + 5011880004.

It is an arithmetic number, because the mean of its divisors is an integer number (10023760004).

Almost surely, 2^30071280009 is an apocalyptic number.

It is an amenable number.

30071280009 is a deficient number, since it is larger than the sum of its proper divisors (10023760007).

30071280009 is a wasteful number, since it uses less digits than its factorization.

30071280009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023760006.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 30071280009 in words is "thirty billion, seventy-one million, two hundred eighty thousand, nine".