6470868509 has 12 divisors (see below), whose sum is σ = 7639689024. Its totient is φ = 5463672984.

The previous prime is 6470868497. The next prime is 6470868517. The reversal of 6470868509 is 9058680746.

It is not a de Polignac number, because 6470868509 - 2²⁰ = 6469819933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6470768509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982229 + ... + 988794.

It is an arithmetic number, because the mean of its divisors is an integer number (636640752).

Almost surely, 2^6470868509 is an apocalyptic number.

It is an amenable number.

6470868509 is a deficient number, since it is larger than the sum of its proper divisors (1168820515).

6470868509 is a wasteful number, since it uses less digits than its factorization.

6470868509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971104 (or 1971097 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 6470868509 is about 80441.7087647944. The cubic root of 6470868509 is about 1863.4633614741.

The spelling of 6470868509 in words is "six billion, four hundred seventy million, eight hundred sixty-eight thousand, five hundred nine".