86528238581705 has 8 divisors (see below), whose sum is σ = 103833937259592. Its totient is φ = 69222556891008.

The previous prime is 86528238581689. The next prime is 86528238581717. The reversal of 86528238581705 is 50718583282568.

It can be written as a sum of positive squares in 4 ways, for example, as 49154737969936 + 37373500611769 = 7011044^2 + 6113387^2 .

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 86528238581705 - 2⁴ = 86528238581689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14412599 + ... + 19513571.

It is an arithmetic number, because the mean of its divisors is an integer number (12979242157449).

Almost surely, 2^{86528238581705} is an apocalyptic number.

It is an amenable number.

86528238581705 is a deficient number, since it is larger than the sum of its proper divisors (17305698677887).

86528238581705 is a wasteful number, since it uses less digits than its factorization.

86528238581705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493595.

The product of its (nonzero) digits is 258048000, while the sum is 68.

The spelling of 86528238581705 in words is "eighty-six trillion, five hundred twenty-eight billion, two hundred thirty-eight million, five hundred eighty-one thousand, seven hundred five".