54216843171 has 4 divisors (see below), whose sum is σ = 72289124232. Its totient is φ = 36144562112.

The previous prime is 54216843101. The next prime is 54216843209. The reversal of 54216843171 is 17134861245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54216843171 - 2¹¹ = 54216841123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54216843101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9036140526 + ... + 9036140531.

It is an arithmetic number, because the mean of its divisors is an integer number (18072281058).

Almost surely, 2^54216843171 is an apocalyptic number.

54216843171 is a deficient number, since it is larger than the sum of its proper divisors (18072281061).

54216843171 is a wasteful number, since it uses less digits than its factorization.

54216843171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18072281060.

The product of its digits is 161280, while the sum is 42.

The spelling of 54216843171 in words is "fifty-four billion, two hundred sixteen million, eight hundred forty-three thousand, one hundred seventy-one".