6390000009 has 40 divisors (see below), whose sum is σ = 9811663488. Its totient is φ = 4142417760.

The previous prime is 6390000007. The next prime is 6390000013. The reversal of 6390000009 is 9000000936.

6390000009 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 6390000009 - 2¹ = 6390000007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6390000007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 592354 + ... + 603044.

Almost surely, 2^6390000009 is an apocalyptic number.

It is an amenable number.

6390000009 is a deficient number, since it is larger than the sum of its proper divisors (3421663479).

6390000009 is a wasteful number, since it uses less digits than its factorization.

6390000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907 (or 10898 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 6390000009 is about 79937.4756231394. The cubic root of 6390000009 is about 1855.6680325604.

The spelling of 6390000009 in words is "six billion, three hundred ninety million, nine", and thus it is an aban number.