85491688414671 has 96 divisors (see below), whose sum is σ = 159673722464256. Its totient is φ = 44407796076000.

The previous prime is 85491688414669. The next prime is 85491688414673. The reversal of 85491688414671 is 17641488619458.

85491688414671 is a `hidden beast` number, since 8 + 5 + 4 + 91 + 68 + 8 + 414 + 67 + 1 = 666.

85491688414671 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (85491688414669) and next prime (85491688414673).

It is not a de Polignac number, because 85491688414671 - 2¹ = 85491688414669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85491688414671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85491688414673) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 248516016 + ... + 248859786.

It is an arithmetic number, because the mean of its divisors is an integer number (1663267942336).

Almost surely, 2^{85491688414671} is an apocalyptic number.

85491688414671 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

85491688414671 is a deficient number, since it is larger than the sum of its proper divisors (74182034049585).

85491688414671 is a wasteful number, since it uses less digits than its factorization.

85491688414671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357095 (or 357083 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 72.

The spelling of 85491688414671 in words is "eighty-five trillion, four hundred ninety-one billion, six hundred eighty-eight million, four hundred fourteen thousand, six hundred seventy-one".