86113520081 has 4 divisors (see below), whose sum is σ = 86161336164. Its totient is φ = 86065704000.

The previous prime is 86113520057. The next prime is 86113520117. The reversal of 86113520081 is 18002531168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44654451856 + 41459068225 = 211316^2 + 203615^2 .

It is a cyclic number.

It is not a de Polignac number, because 86113520081 - 2²² = 86109325777 is a prime.

It is a super-2 number, since 2×86113520081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86113520981) 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 3 ways as a sum of consecutive naturals, for example, 23905340 + ... + 23908941.

It is an arithmetic number, because the mean of its divisors is an integer number (21540334041).

Almost surely, 2^86113520081 is an apocalyptic number.

It is an amenable number.

86113520081 is a deficient number, since it is larger than the sum of its proper divisors (47816083).

86113520081 is a wasteful number, since it uses less digits than its factorization.

86113520081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47816082.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 86113520081 in words is "eighty-six billion, one hundred thirteen million, five hundred twenty thousand, eighty-one".