6434647009 has 8 divisors (see below), whose sum is σ = 7382498688. Its totient is φ = 5493949440.

The previous prime is 6434646997. The next prime is 6434647013. The reversal of 6434647009 is 9007464346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6434647009 - 2¹³ = 6434638817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6434647039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786597 + ... + 1790194.

It is an arithmetic number, because the mean of its divisors is an integer number (922812336).

Almost surely, 2^6434647009 is an apocalyptic number.

It is an amenable number.

6434647009 is a deficient number, since it is larger than the sum of its proper divisors (947851679).

6434647009 is a wasteful number, since it uses less digits than its factorization.

6434647009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577055.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 6434647009 is about 80216.2515267324. The cubic root of 6434647009 is about 1859.9798634464.

The spelling of 6434647009 in words is "six billion, four hundred thirty-four million, six hundred forty-seven thousand, nine".