86427143571677 has 8 divisors (see below), whose sum is σ = 86442176571960. Its totient is φ = 86412111482880.

The previous prime is 86427143571617. The next prime is 86427143571701. The reversal of 86427143571677 is 77617534172468.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47222652271876 + 39204491299801 = 6871874^2 + 6261349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86427143571677 - 2²⁰ = 86427142523101 is a prime.

It is a super-2 number, since 2×86427143571677² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86427143571617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205333277 + ... + 205753757.

It is an arithmetic number, because the mean of its divisors is an integer number (10805272071495).

Almost surely, 2^{86427143571677} is an apocalyptic number.

It is an amenable number.

86427143571677 is a deficient number, since it is larger than the sum of its proper divisors (15033000283).

86427143571677 is a wasteful number, since it uses less digits than its factorization.

86427143571677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455743.

The product of its digits is 331914240, while the sum is 68.

The spelling of 86427143571677 in words is "eighty-six trillion, four hundred twenty-seven billion, one hundred forty-three million, five hundred seventy-one thousand, six hundred seventy-seven".