86512855807 has 4 divisors (see below), whose sum is σ = 98871835216. Its totient is φ = 74153876400.

The previous prime is 86512855769. The next prime is 86512855813. The reversal of 86512855807 is 70855821568.

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

It is a cyclic number.

It is not a de Polignac number, because 86512855807 - 2¹¹ = 86512853759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86512855307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179489694 + ... + 6179489707.

It is an arithmetic number, because the mean of its divisors is an integer number (24717958804).

Almost surely, 2^86512855807 is an apocalyptic number.

86512855807 is a deficient number, since it is larger than the sum of its proper divisors (12358979409).

86512855807 is a wasteful number, since it uses less digits than its factorization.

86512855807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358979408.

The product of its (nonzero) digits is 5376000, while the sum is 55.

The spelling of 86512855807 in words is "eighty-six billion, five hundred twelve million, eight hundred fifty-five thousand, eight hundred seven".