86688286890 has 64 divisors (see below), whose sum is σ = 208887275520. Its totient is φ = 23024174400.

The previous prime is 86688286849. The next prime is 86688286907. The reversal of 86688286890 is 9868288668.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16197715 + ... + 16203065.

It is an arithmetic number, because the mean of its divisors is an integer number (3263863680).

Almost surely, 2^86688286890 is an apocalyptic number.

86688286890 is an abundant number, since it is smaller than the sum of its proper divisors (122198988630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86688286890 is a wasteful number, since it uses less digits than its factorization.

86688286890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427.

The product of its (nonzero) digits is 127401984, while the sum is 69.

The spelling of 86688286890 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, eight hundred ninety".