4143456845 has 18 divisors (see below), whose sum is σ = 5467342986. Its totient is φ = 3012271680.

The previous prime is 4143456841. The next prime is 4143456881. The reversal of 4143456845 is 5486543414.

It can be written as a sum of positive squares in 3 ways, for example, as 2743873924 + 1399582921 = 52382^2 + 37411^2 .

It is not a de Polignac number, because 4143456845 - 2² = 4143456841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4143456796 and 4143456805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143456841) 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 17 ways as a sum of consecutive naturals, for example, 1581977 + ... + 1584593.

It is an arithmetic number, because the mean of its divisors is an integer number (303741277).

Almost surely, 2^4143456845 is an apocalyptic number.

It is an amenable number.

4143456845 is a deficient number, since it is larger than the sum of its proper divisors (1323886141).

4143456845 is an frugal number, since it uses more digits than its factorization.

4143456845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261 (or 2633 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The square root of 4143456845 is about 64369.6888682864. The cubic root of 4143456845 is about 1606.1555644642.

The spelling of 4143456845 in words is "four billion, one hundred forty-three million, four hundred fifty-six thousand, eight hundred forty-five".