86185630765 has 8 divisors (see below), whose sum is σ = 111378353688. Its totient is φ = 63644773440.

The previous prime is 86185630717. The next prime is 86185630771. The reversal of 86185630765 is 56703658168.

It can be written as a sum of positive squares in 4 ways, for example, as 3479348196 + 82706282569 = 58986^2 + 287587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86185630765 - 2⁹ = 86185630253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 662966326 + ... + 662966455.

It is an arithmetic number, because the mean of its divisors is an integer number (13922294211).

Almost surely, 2^86185630765 is an apocalyptic number.

It is an amenable number.

86185630765 is a deficient number, since it is larger than the sum of its proper divisors (25192722923).

86185630765 is a wasteful number, since it uses less digits than its factorization.

86185630765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325932799.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 86185630765 in words is "eighty-six billion, one hundred eighty-five million, six hundred thirty thousand, seven hundred sixty-five".