838466580663 has 12 divisors (see below), whose sum is σ = 1211370825600. Its totient is φ = 558861213696.

The previous prime is 838466580649. The next prime is 838466580691. The reversal of 838466580663 is 366085664838.

838466580663 is a `hidden beast` number, since 8 + 3 + 8 + 46 + 6 + 580 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 838466580663 - 2⁴ = 838466580647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 838466580663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838466680663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9663306 + ... + 9749687.

It is an arithmetic number, because the mean of its divisors is an integer number (100947568800).

Almost surely, 2^838466580663 is an apocalyptic number.

838466580663 is a deficient number, since it is larger than the sum of its proper divisors (372904244937).

838466580663 is a wasteful number, since it uses less digits than its factorization.

838466580663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19417798 (or 19417795 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 63.

The spelling of 838466580663 in words is "eight hundred thirty-eight billion, four hundred sixty-six million, five hundred eighty thousand, six hundred sixty-three".