8543485881 has 32 divisors (see below), whose sum is σ = 15316058880. Its totient is φ = 4594814208.

The previous prime is 8543485859. The next prime is 8543485883. The reversal of 8543485881 is 1885843458.

8543485881 is a `hidden beast` number, since 8 + 54 + 3 + 4 + 8 + 588 + 1 = 666.

It is not a de Polignac number, because 8543485881 - 2¹⁸ = 8543223737 is a prime.

It is a super-2 number, since 2×8543485881² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8543485883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326306 + ... + 1332731.

It is an arithmetic number, because the mean of its divisors is an integer number (478626840).

Almost surely, 2^8543485881 is an apocalyptic number.

It is an amenable number.

8543485881 is a deficient number, since it is larger than the sum of its proper divisors (6772572999).

8543485881 is a wasteful number, since it uses less digits than its factorization.

8543485881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659070 (or 2659064 counting only the distinct ones).

The product of its digits is 4915200, while the sum is 54.

The square root of 8543485881 is about 92430.9790113683. The cubic root of 8543485881 is about 2044.3019144721.

The spelling of 8543485881 in words is "eight billion, five hundred forty-three million, four hundred eighty-five thousand, eight hundred eighty-one".