6400649282 has 16 divisors (see below), whose sum is σ = 10195731360. Its totient is φ = 3005053632.

The previous prime is 6400649261. The next prime is 6400649327. The reversal of 6400649282 is 2829460046.

It is a super-2 number, since 2×6400649282² = 81936622462334231048, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 741008 + ... + 749595.

It is an arithmetic number, because the mean of its divisors is an integer number (637233210).

Almost surely, 2^6400649282 is an apocalyptic number.

6400649282 is a deficient number, since it is larger than the sum of its proper divisors (3795082078).

6400649282 is a wasteful number, since it uses less digits than its factorization.

6400649282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490737.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 6400649282 is about 80004.0579095836. The cubic root of 6400649282 is about 1856.6983167404.

The spelling of 6400649282 in words is "six billion, four hundred million, six hundred forty-nine thousand, two hundred eighty-two".