86688286887 has 8 divisors (see below), whose sum is σ = 115731252736. Its totient is φ = 57718756152.

The previous prime is 86688286849. The next prime is 86688286907. The reversal of 86688286887 is 78868288668.

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

It is not a de Polignac number, because 86688286887 - 2¹⁸ = 86688024743 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 (86688286837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18356023 + ... + 18360744.

It is an arithmetic number, because the mean of its divisors is an integer number (14466406592).

Almost surely, 2^86688286887 is an apocalyptic number.

86688286887 is a deficient number, since it is larger than the sum of its proper divisors (29042965849).

86688286887 is a wasteful number, since it uses less digits than its factorization.

86688286887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36717557.

The product of its digits is 792723456, while the sum is 75.

The spelling of 86688286887 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, eight hundred eighty-seven".