86686420020 has 48 divisors (see below), whose sum is σ = 242751212928. Its totient is φ = 23113594240.

The previous prime is 86686419979. The next prime is 86686420031. The reversal of 86686420020 is 2002468668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441817 + ... + 607103.

It is an arithmetic number, because the mean of its divisors is an integer number (5057316936).

Almost surely, 2^86686420020 is an apocalyptic number.

It is an amenable number.

86686420020 is an abundant number, since it is smaller than the sum of its proper divisors (156064792908).

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

86686420020 is a wasteful number, since it uses less digits than its factorization.

86686420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174040 (or 174038 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

Adding to 86686420020 its reverse (2002468668), we get a palindrome (88688888688).

The spelling of 86686420020 in words is "eighty-six billion, six hundred eighty-six million, four hundred twenty thousand, twenty".