6466945384 has 32 divisors (see below), whose sum is σ = 12843074880. Its totient is φ = 3042252544.

The previous prime is 6466945363. The next prime is 6466945409. The reversal of 6466945384 is 4835496646.

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, 539019 + ... + 550885.

It is an arithmetic number, because the mean of its divisors is an integer number (401346090).

Almost surely, 2^6466945384 is an apocalyptic number.

It is an amenable number.

6466945384 is a deficient number, since it is larger than the sum of its proper divisors (6376129496).

6466945384 is a wasteful number, since it uses less digits than its factorization.

6466945384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897 (or 15893 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 55.

The square root of 6466945384 is about 80417.3201742013. The cubic root of 6466945384 is about 1863.0866950035.

The spelling of 6466945384 in words is "six billion, four hundred sixty-six million, nine hundred forty-five thousand, three hundred eighty-four".