4578651220171 has 16 divisors (see below), whose sum is σ = 5400859265280. Its totient is φ = 3800457540000.

The previous prime is 4578651220153. The next prime is 4578651220177. The reversal of 4578651220171 is 1710221568754.

It is a cyclic number.

It is not a de Polignac number, because 4578651220171 - 2²¹ = 4578649123019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4578651220177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82706080 + ... + 82761421.

It is an arithmetic number, because the mean of its divisors is an integer number (337553704080).

Almost surely, 2^{4578651220171} is an apocalyptic number.

4578651220171 is a deficient number, since it is larger than the sum of its proper divisors (822208045109).

4578651220171 is a wasteful number, since it uses less digits than its factorization.

4578651220171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165467634.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 4578651220171 in words is "four trillion, five hundred seventy-eight billion, six hundred fifty-one million, two hundred twenty thousand, one hundred seventy-one".