86646186458 has 32 divisors (see below), whose sum is σ = 140613484032. Its totient is φ = 39806121600.

The previous prime is 86646186437. The next prime is 86646186467. The reversal of 86646186458 is 85468164668.

It is a self number, because there is not a number n which added to its sum of digits gives 86646186458.

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 15 ways as a sum of consecutive naturals, for example, 7526735 + ... + 7538237.

It is an arithmetic number, because the mean of its divisors is an integer number (4394171376).

Almost surely, 2^86646186458 is an apocalyptic number.

86646186458 is a deficient number, since it is larger than the sum of its proper divisors (53967297574).

86646186458 is a wasteful number, since it uses less digits than its factorization.

86646186458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830.

The product of its digits is 53084160, while the sum is 62.

The spelling of 86646186458 in words is "eighty-six billion, six hundred forty-six million, one hundred eighty-six thousand, four hundred fifty-eight".