4271116581 has 24 divisors (see below), whose sum is σ = 6354508160. Its totient is φ = 2835344088.

The previous prime is 4271116573. The next prime is 4271116627. The reversal of 4271116581 is 1856111724.

4271116581 is a `hidden beast` number, since 4 + 2 + 71 + 1 + 1 + 6 + 581 = 666.

It is not a de Polignac number, because 4271116581 - 2³ = 4271116573 is a prime.

It is a super-3 number, since 3×4271116581³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4271116561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1866420 + ... + 1868706.

Almost surely, 2^4271116581 is an apocalyptic number.

It is an amenable number.

4271116581 is a deficient number, since it is larger than the sum of its proper divisors (2083391579).

4271116581 is an equidigital number, since it uses as much as digits as its factorization.

4271116581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2553 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 4271116581 is about 65353.7801584576. The cubic root of 4271116581 is about 1622.4841961957.

The spelling of 4271116581 in words is "four billion, two hundred seventy-one million, one hundred sixteen thousand, five hundred eighty-one".