86564885810 has 16 divisors (see below), whose sum is σ = 167802701976. Its totient is φ = 31962419328.

The previous prime is 86564885809. The next prime is 86564885821. The reversal of 86564885810 is 1858846568.

It can be written as a sum of positive squares in 4 ways, for example, as 27062553049 + 59502332761 = 164507^2 + 243931^2 .

It is a super-2 number, since 2×86564885810² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86564885810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332941739 + ... + 332941998.

Almost surely, 2^86564885810 is an apocalyptic number.

86564885810 is a deficient number, since it is larger than the sum of its proper divisors (81237816166).

86564885810 is a wasteful number, since it uses less digits than its factorization.

86564885810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665883757.

The product of its (nonzero) digits is 14745600, while the sum is 59.

The spelling of 86564885810 in words is "eighty-six billion, five hundred sixty-four million, eight hundred eighty-five thousand, eight hundred ten".