86855164907 has 4 divisors (see below), whose sum is σ = 99263045616. Its totient is φ = 74447284200.

The previous prime is 86855164861. The next prime is 86855164939. The reversal of 86855164907 is 70946155868.

It is a happy number.

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 86855164907 - 2²⁰ = 86854116331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86855164507) 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, 6203940344 + ... + 6203940357.

It is an arithmetic number, because the mean of its divisors is an integer number (24815761404).

Almost surely, 2^86855164907 is an apocalyptic number.

86855164907 is a deficient number, since it is larger than the sum of its proper divisors (12407880709).

86855164907 is a wasteful number, since it uses less digits than its factorization.

86855164907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407880708.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 86855164907 in words is "eighty-six billion, eight hundred fifty-five million, one hundred sixty-four thousand, nine hundred seven".