86205274561 has 16 divisors (see below), whose sum is σ = 101581083648. Its totient is φ = 71620894800.

The previous prime is 86205274541. The next prime is 86205274577. The reversal of 86205274561 is 16547250268.

It is not a de Polignac number, because 86205274561 - 2¹⁹ = 86204750273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86205274541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053685 + ... + 1132546.

It is an arithmetic number, because the mean of its divisors is an integer number (6348817728).

Almost surely, 2^86205274561 is an apocalyptic number.

It is an amenable number.

86205274561 is a deficient number, since it is larger than the sum of its proper divisors (15375809087).

86205274561 is a wasteful number, since it uses less digits than its factorization.

86205274561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186412.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 86205274561 in words is "eighty-six billion, two hundred five million, two hundred seventy-four thousand, five hundred sixty-one".