6386449456 has 20 divisors (see below), whose sum is σ = 12375100552. Its totient is φ = 3192875136.

The previous prime is 6386449439. The next prime is 6386449471. The reversal of 6386449456 is 6549446836.

It is a junction number, because it is equal to n+sod(n) for n = 6386449397 and 6386449406.

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, 192700 + ... + 223396.

Almost surely, 2^6386449456 is an apocalyptic number.

It is an amenable number.

6386449456 is a deficient number, since it is larger than the sum of its proper divisors (5988651096).

6386449456 is a wasteful number, since it uses less digits than its factorization.

6386449456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43708 (or 43702 counting only the distinct ones).

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

The square root of 6386449456 is about 79915.2642240517. The cubic root of 6386449456 is about 1855.3242731249.

The spelling of 6386449456 in words is "six billion, three hundred eighty-six million, four hundred forty-nine thousand, four hundred fifty-six".