5671445481 has 27 divisors (see below), whose sum is σ = 8875318647. Its totient is φ = 3488312880.

The previous prime is 5671445447. The next prime is 5671445513. The reversal of 5671445481 is 1845441765.

The square root of 5671445481 is 75309.

It is a perfect power (a square), and thus also a powerful number.

5671445481 is a `hidden beast` number, since 5 + 67 + 1 + 44 + 548 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 838971225 + 4832474256 = 28965^2 + 69516^2 .

It is not a de Polignac number, because 5671445481 - 2¹⁷ = 5671314409 is a prime.

It is a super-2 number, since 2×5671445481² = 64330587687910642722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5671445881) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2936086 + ... + 2938016.

Almost surely, 2^5671445481 is an apocalyptic number.

5671445481 is the 75309-th square number.

5671445481 is the 37655-th centered octagonal number.

It is an amenable number.

5671445481 is a deficient number, since it is larger than the sum of its proper divisors (3203873166).

5671445481 is an equidigital number, since it uses as much as digits as its factorization.

5671445481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894 (or 1947 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The cubic root of 5671445481 is about 1783.3281042810.

The spelling of 5671445481 in words is "five billion, six hundred seventy-one million, four hundred forty-five thousand, four hundred eighty-one".