86689019860 has 96 divisors (see below), whose sum is σ = 192817336320. Its totient is φ = 32670646272.

The previous prime is 86689019801. The next prime is 86689019861. The reversal of 86689019860 is 6891098668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86689019861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38716621 + ... + 38718859.

It is an arithmetic number, because the mean of its divisors is an integer number (2008513920).

Almost surely, 2^86689019860 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 86689019860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96408668160).

86689019860 is an abundant number, since it is smaller than the sum of its proper divisors (106128316460).

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

86689019860 is a wasteful number, since it uses less digits than its factorization.

86689019860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 86689019860 in words is "eighty-six billion, six hundred eighty-nine million, nineteen thousand, eight hundred sixty".