8001400009 has 2 divisors, whose sum is σ = 8001400010. Its totient is φ = 8001400008.

The previous prime is 8001400007. The next prime is 8001400021. The reversal of 8001400009 is 9000041008.

8001400009 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7766544384 + 234855625 = 88128^2 + 15325^2 .

It is a cyclic number.

It is not a de Polignac number, because 8001400009 - 2¹ = 8001400007 is a prime.

Together with 8001400007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8001400007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000700004 + 4000700005.

It is an arithmetic number, because the mean of its divisors is an integer number (4000700005).

Almost surely, 2^8001400009 is an apocalyptic number.

It is an amenable number.

8001400009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8001400009 is an equidigital number, since it uses as much as digits as its factorization.

8001400009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8001400009 is about 89450.5450458520. The cubic root of 8001400009 is about 2000.1166606117.

The spelling of 8001400009 in words is "eight billion, one million, four hundred thousand, nine".