486336867221 has 4 divisors (see below), whose sum is σ = 514944918252. Its totient is φ = 457728816192.

The previous prime is 486336867179. The next prime is 486336867223. The reversal of 486336867221 is 122768633684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356870032996 + 129466834225 = 597386^2 + 359815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-486336867221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486336867223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14304025490 + ... + 14304025523.

It is an arithmetic number, because the mean of its divisors is an integer number (128736229563).

Almost surely, 2^486336867221 is an apocalyptic number.

It is an amenable number.

486336867221 is a deficient number, since it is larger than the sum of its proper divisors (28608051031).

486336867221 is a wasteful number, since it uses less digits than its factorization.

486336867221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608051030.

The product of its digits is 13934592, while the sum is 56.

The spelling of 486336867221 in words is "four hundred eighty-six billion, three hundred thirty-six million, eight hundred sixty-seven thousand, two hundred twenty-one".