445649472256 has 18 divisors (see below), whose sum is σ = 889558126772. Its totient is φ = 222824736000.

The previous prime is 445649472143. The next prime is 445649472259. The reversal of 445649472256 is 652274946544.

It is a self number, because there is not a number n which added to its sum of digits gives 445649472256.

It is not an unprimeable number, because it can be changed into a prime (445649472259) by changing a digit.

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 as a sum of consecutive naturals, namely, 870408870 + ... + 870409381.

Almost surely, 2^445649472256 is an apocalyptic number.

It is an amenable number.

445649472256 is a deficient number, since it is larger than the sum of its proper divisors (443908654516).

445649472256 is an equidigital number, since it uses as much as digits as its factorization.

445649472256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740818267 (or 1740818253 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 58.

The spelling of 445649472256 in words is "four hundred forty-five billion, six hundred forty-nine million, four hundred seventy-two thousand, two hundred fifty-six".