445478445445 has 96 divisors (see below), whose sum is σ = 628962213600. Its totient is φ = 302076149760.

The previous prime is 445478445443. The next prime is 445478445457. The reversal of 445478445445 is 544544874544.

It can be written as a sum of positive squares in 16 ways, for example, as 16560858721 + 428917586724 = 128689^2 + 654918^2 .

It is not a de Polignac number, because 445478445445 - 2¹ = 445478445443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445478445445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445478445443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88933101 + ... + 88938109.

It is an arithmetic number, because the mean of its divisors is an integer number (6551689725).

Almost surely, 2^445478445445 is an apocalyptic number.

It is an amenable number.

445478445445 is a deficient number, since it is larger than the sum of its proper divisors (183483768155).

445478445445 is a wasteful number, since it uses less digits than its factorization.

445478445445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239 (or 5228 counting only the distinct ones).

The product of its digits is 114688000, while the sum is 58.

The spelling of 445478445445 in words is "four hundred forty-five billion, four hundred seventy-eight million, four hundred forty-five thousand, four hundred forty-five".