86662802820 has 96 divisors (see below), whose sum is σ = 265578356736. Its totient is φ = 20940681600.

The previous prime is 86662802791. The next prime is 86662802839. The reversal of 86662802820 is 2820826668.

It is a self number, because there is not a number n which added to its sum of digits gives 86662802820.

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, 11236 + ... + 416475.

It is an arithmetic number, because the mean of its divisors is an integer number (2766441216).

Almost surely, 2^86662802820 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 86662802820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132789178368).

86662802820 is an abundant number, since it is smaller than the sum of its proper divisors (178915553916).

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

86662802820 is a wasteful number, since it uses less digits than its factorization.

86662802820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428041 (or 428039 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 86662802820 in words is "eighty-six billion, six hundred sixty-two million, eight hundred two thousand, eight hundred twenty".