445944449544 has 64 divisors (see below), whose sum is σ = 1255444807680. Its totient is φ = 130775496000.

The previous prime is 445944449537. The next prime is 445944449549.

445944449544 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (445944449549) 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 in 15 ways as a sum of consecutive naturals, for example, 27236712 + ... + 27253079.

It is an arithmetic number, because the mean of its divisors is an integer number (19616325120).

Almost surely, 2^445944449544 is an apocalyptic number.

445944449544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

445944449544 is an abundant number, since it is smaller than the sum of its proper divisors (809500358136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445944449544 is a wasteful number, since it uses less digits than its factorization.

445944449544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54489842 (or 54489838 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 60.

The spelling of 445944449544 in words is "four hundred forty-five billion, nine hundred forty-four million, four hundred forty-nine thousand, five hundred forty-four".