4161854543 has 12 divisors (see below), whose sum is σ = 5281463592. Its totient is φ = 3243003120.

The previous prime is 4161854533. The next prime is 4161854561. The reversal of 4161854543 is 3454581614.

4161854543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4161854543 - 2¹⁸ = 4161592399 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4161854543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161854533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3860180 + ... + 3861257.

It is an arithmetic number, because the mean of its divisors is an integer number (440121966).

Almost surely, 2^4161854543 is an apocalyptic number.

4161854543 is a deficient number, since it is larger than the sum of its proper divisors (1119609049).

4161854543 is a wasteful number, since it uses less digits than its factorization.

4161854543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721462 (or 7721455 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 4161854543 is about 64512.4371187448. The cubic root of 4161854543 is about 1608.5292618018.

The spelling of 4161854543 in words is "four billion, one hundred sixty-one million, eight hundred fifty-four thousand, five hundred forty-three".