86585722215 has 16 divisors (see below), whose sum is σ = 138548855808. Its totient is φ = 46175151776.

The previous prime is 86585722193. The next prime is 86585722261. The reversal of 86585722215 is 51222758568.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86585722215 - 2⁶ = 86585722151 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 55539 + ... + 419828.

It is an arithmetic number, because the mean of its divisors is an integer number (8659303488).

Almost surely, 2^86585722215 is an apocalyptic number.

86585722215 is a deficient number, since it is larger than the sum of its proper divisors (51963133593).

86585722215 is a wasteful number, since it uses less digits than its factorization.

86585722215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487518.

The product of its digits is 2688000, while the sum is 51.

The spelling of 86585722215 in words is "eighty-six billion, five hundred eighty-five million, seven hundred twenty-two thousand, two hundred fifteen".