86663850860 has 96 divisors (see below), whose sum is σ = 197625718080. Its totient is φ = 31794176000.

The previous prime is 86663850857. The next prime is 86663850869. The reversal of 86663850860 is 6805836668.

It is a junction number, because it is equal to n+sod(n) for n = 86663850796 and 86663850805.

It is not an unprimeable number, because it can be changed into a prime (86663850869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14201810 + ... + 14207910.

It is an arithmetic number, because the mean of its divisors is an integer number (2058601230).

Almost surely, 2^86663850860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86663850860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98812859040).

86663850860 is an abundant number, since it is smaller than the sum of its proper divisors (110961867220).

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

86663850860 is a wasteful number, since it uses less digits than its factorization.

86663850860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187 (or 7185 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 86663850860 in words is "eighty-six billion, six hundred sixty-three million, eight hundred fifty thousand, eight hundred sixty".