6464642468 has 24 divisors (see below), whose sum is σ = 11383872192. Its totient is φ = 3212146784.

The previous prime is 6464642447. The next prime is 6464642521. The reversal of 6464642468 is 8642464646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741905 + ... + 750567.

It is an arithmetic number, because the mean of its divisors is an integer number (474328008).

Almost surely, 2^6464642468 is an apocalyptic number.

It is an amenable number.

6464642468 is a deficient number, since it is larger than the sum of its proper divisors (4919229724).

6464642468 is a wasteful number, since it uses less digits than its factorization.

6464642468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811 (or 9809 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 50.

The square root of 6464642468 is about 80403.0003669017. Note that the first 3 decimals coincide. The cubic root of 6464642468 is about 1862.8655168275.

The spelling of 6464642468 in words is "six billion, four hundred sixty-four million, six hundred forty-two thousand, four hundred sixty-eight".