8880016009 has 2 divisors, whose sum is σ = 8880016010. Its totient is φ = 8880016008.

The previous prime is 8880016007. The next prime is 8880016039. The reversal of 8880016009 is 9006100888.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5893939984 + 2986076025 = 76772^2 + 54645^2 .

It is a cyclic number.

It is not a de Polignac number, because 8880016009 - 2¹ = 8880016007 is a prime.

Together with 8880016007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8880016007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4440008004 + 4440008005.

It is an arithmetic number, because the mean of its divisors is an integer number (4440008005).

Almost surely, 2^8880016009 is an apocalyptic number.

It is an amenable number.

8880016009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8880016009 is an equidigital number, since it uses as much as digits as its factorization.

8880016009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 8880016009 is about 94233.8368581053. The cubic root of 8880016009 is about 2070.7988553179.

The spelling of 8880016009 in words is "eight billion, eight hundred eighty million, sixteen thousand, nine".