86645663207 has 4 divisors (see below), whose sum is σ = 86694151656. Its totient is φ = 86597174760.

The previous prime is 86645663201. The next prime is 86645663231. The reversal of 86645663207 is 70236654668.

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 86645663207 - 2¹⁰ = 86645662183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86645663201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24241544 + ... + 24245117.

It is an arithmetic number, because the mean of its divisors is an integer number (21673537914).

Almost surely, 2^86645663207 is an apocalyptic number.

86645663207 is a deficient number, since it is larger than the sum of its proper divisors (48488449).

86645663207 is a wasteful number, since it uses less digits than its factorization.

86645663207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48488448.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 86645663207 in words is "eighty-six billion, six hundred forty-five million, six hundred sixty-three thousand, two hundred seven".