445143543872 has 28 divisors (see below), whose sum is σ = 884668160556. Its totient is φ = 222235031040.

The previous prime is 445143543851. The next prime is 445143543893. The reversal of 445143543872 is 278345341544.

It is an interprime number because it is at equal distance from previous prime (445143543851) and next prime (445143543893).

It can be written as a sum of positive squares in 2 ways, for example, as 243664653376 + 201478890496 = 493624^2 + 448864^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 445143543872.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5218943 + ... + 5303550.

Almost surely, 2^445143543872 is an apocalyptic number.

It is an amenable number.

445143543872 is a deficient number, since it is larger than the sum of its proper divisors (439524616684).

445143543872 is a wasteful number, since it uses less digits than its factorization.

445143543872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523166 (or 10523156 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 50.

The spelling of 445143543872 in words is "four hundred forty-five billion, one hundred forty-three million, five hundred forty-three thousand, eight hundred seventy-two".