445324423545 has 144 divisors (see below), whose sum is σ = 859475485440. Its totient is φ = 212608779264.

The previous prime is 445324423543. The next prime is 445324423553. The reversal of 445324423545 is 545324423544.

445324423545 is a `hidden beast` number, since 4 + 4 + 53 + 244 + 2 + 354 + 5 = 666.

It is not a de Polignac number, because 445324423545 - 2¹ = 445324423543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 445324423545.

It is not an unprimeable number, because it can be changed into a prime (445324423543) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33788997 + ... + 33802173.

It is an arithmetic number, because the mean of its divisors is an integer number (5968579760).

Almost surely, 2^445324423545 is an apocalyptic number.

445324423545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

445324423545 is a deficient number, since it is larger than the sum of its proper divisors (414151061895).

445324423545 is a wasteful number, since it uses less digits than its factorization.

445324423545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13312 (or 13280 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 45.

Subtracting 445324423545 from its reverse (545324423544), we obtain a palindrome (99999999999).

The spelling of 445324423545 in words is "four hundred forty-five billion, three hundred twenty-four million, four hundred twenty-three thousand, five hundred forty-five".