6456847646 has 8 divisors (see below), whose sum is σ = 9686944344. Its totient is φ = 3227866200.

The previous prime is 6456847637. The next prime is 6456847681. The reversal of 6456847646 is 6467486546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6456847591 and 6456847600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264185 + ... + 287588.

It is an arithmetic number, because the mean of its divisors is an integer number (1210868043).

Almost surely, 2^6456847646 is an apocalyptic number.

6456847646 is a deficient number, since it is larger than the sum of its proper divisors (3230096698).

6456847646 is a wasteful number, since it uses less digits than its factorization.

6456847646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557626.

The product of its digits is 23224320, while the sum is 56.

The square root of 6456847646 is about 80354.5122939589. The cubic root of 6456847646 is about 1862.1164913776.

The spelling of 6456847646 in words is "six billion, four hundred fifty-six million, eight hundred forty-seven thousand, six hundred forty-six".