85866171027476 has 48 divisors (see below), whose sum is σ = 171777947913600. Its totient is φ = 36790016289408.

The previous prime is 85866171027433. The next prime is 85866171027557. The reversal of 85866171027476 is 67472017166858.

It is a super-4 number, since 4×85866171027476⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195653115 + ... + 2195692221.

It is an arithmetic number, because the mean of its divisors is an integer number (3578707248200).

Almost surely, 2^{85866171027476} is an apocalyptic number.

It is an amenable number.

85866171027476 is an abundant number, since it is smaller than the sum of its proper divisors (85911776886124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85866171027476 is a wasteful number, since it uses less digits than its factorization.

85866171027476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57936 (or 57934 counting only the distinct ones).

The product of its (nonzero) digits is 189665280, while the sum is 68.

The spelling of 85866171027476 in words is "eighty-five trillion, eight hundred sixty-six billion, one hundred seventy-one million, twenty-seven thousand, four hundred seventy-six".