8128086081 has 8 divisors (see below), whose sum is σ = 11308641600. Its totient is φ = 5183127312.

The previous prime is 8128086079. The next prime is 8128086091. The reversal of 8128086081 is 1806808218.

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

It is not a de Polignac number, because 8128086081 - 2¹ = 8128086079 is a prime.

It is a super-2 number, since 2×8128086081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8128086011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58899106 + ... + 58899243.

It is an arithmetic number, because the mean of its divisors is an integer number (1413580200).

Almost surely, 2^8128086081 is an apocalyptic number.

It is an amenable number.

8128086081 is a deficient number, since it is larger than the sum of its proper divisors (3180555519).

8128086081 is a wasteful number, since it uses less digits than its factorization.

8128086081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117798375.

The product of its (nonzero) digits is 49152, while the sum is 42.

The square root of 8128086081 is about 90155.8987587612. The cubic root of 8128086081 is about 2010.6173760065.

The spelling of 8128086081 in words is "eight billion, one hundred twenty-eight million, eighty-six thousand, eighty-one".