6464552272 has 20 divisors (see below), whose sum is σ = 12701481696. Its totient is φ = 3186750560.

The previous prime is 6464552261. The next prime is 6464552299. The reversal of 6464552272 is 2722554646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844178 + ... + 2846449.

Almost surely, 2^6464552272 is an apocalyptic number.

It is an amenable number.

6464552272 is a deficient number, since it is larger than the sum of its proper divisors (6236929424).

6464552272 is a wasteful number, since it uses less digits than its factorization.

6464552272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690706 (or 5690700 counting only the distinct ones).

The product of its digits is 806400, while the sum is 43.

The square root of 6464552272 is about 80402.4394654789. The cubic root of 6464552272 is about 1862.8568530950.

The spelling of 6464552272 in words is "six billion, four hundred sixty-four million, five hundred fifty-two thousand, two hundred seventy-two".