84856146171 has 16 divisors (see below), whose sum is σ = 114021029760. Its totient is φ = 56131133760.

The previous prime is 84856146161. The next prime is 84856146173. The reversal of 84856146171 is 17164165848.

It is not a de Polignac number, because 84856146171 - 2¹⁰ = 84856145147 is a prime.

It is a super-2 number, since 2×84856146171² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84856146173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4723935 + ... + 4741863.

It is an arithmetic number, because the mean of its divisors is an integer number (7126314360).

Almost surely, 2^84856146171 is an apocalyptic number.

84856146171 is a deficient number, since it is larger than the sum of its proper divisors (29164883589).

84856146171 is a wasteful number, since it uses less digits than its factorization.

84856146171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30106.

The product of its digits is 1290240, while the sum is 51.

The spelling of 84856146171 in words is "eighty-four billion, eight hundred fifty-six million, one hundred forty-six thousand, one hundred seventy-one".