86763841866 has 36 divisors (see below), whose sum is σ = 203561328438. Its totient is φ = 26696565792.

The previous prime is 86763841861. The next prime is 86763841877. The reversal of 86763841866 is 66814836768.

86763841866 is a `hidden beast` number, since 8 + 6 + 76 + 384 + 186 + 6 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 47508741225 + 39255100641 = 217965^2 + 198129^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86763841861) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14257945 + ... + 14264028.

Almost surely, 2^86763841866 is an apocalyptic number.

86763841866 is an abundant number, since it is smaller than the sum of its proper divisors (116797486572).

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

86763841866 is a wasteful number, since it uses less digits than its factorization.

86763841866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28522007 (or 28521991 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 86763841866 in words is "eighty-six billion, seven hundred sixty-three million, eight hundred forty-one thousand, eight hundred sixty-six".