86681495968 has 24 divisors (see below), whose sum is σ = 170669060100. Its totient is φ = 43336972800.

The previous prime is 86681495917. The next prime is 86681496007. The reversal of 86681495968 is 86959418668.

It can be written as a sum of positive squares in 2 ways, for example, as 86254990864 + 426505104 = 293692^2 + 20652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86681495897 and 86681495906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275308 + ... + 499156.

Almost surely, 2^86681495968 is an apocalyptic number.

It is an amenable number.

86681495968 is a deficient number, since it is larger than the sum of its proper divisors (83987564132).

86681495968 is a wasteful number, since it uses less digits than its factorization.

86681495968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235960 (or 235952 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 70.

The spelling of 86681495968 in words is "eighty-six billion, six hundred eighty-one million, four hundred ninety-five thousand, nine hundred sixty-eight".