86427068621 has 8 divisors (see below), whose sum is σ = 91651164984. Its totient is φ = 81218544640.

The previous prime is 86427068617. The next prime is 86427068627. The reversal of 86427068621 is 12686072468.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36409982596 + 50017086025 = 190814^2 + 223645^2 .

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 86427068621 - 2² = 86427068617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86427068621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86427068627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3881660 + ... + 3903861.

It is an arithmetic number, because the mean of its divisors is an integer number (11456395623).

Almost surely, 2^86427068621 is an apocalyptic number.

It is an amenable number.

86427068621 is a deficient number, since it is larger than the sum of its proper divisors (5224096363).

86427068621 is a wasteful number, since it uses less digits than its factorization.

86427068621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786191.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 86427068621 in words is "eighty-six billion, four hundred twenty-seven million, sixty-eight thousand, six hundred twenty-one".