486810217818 has 48 divisors (see below), whose sum is σ = 1084085608320. Its totient is φ = 157764410208.

The previous prime is 486810217769. The next prime is 486810217877. The reversal of 486810217818 is 818712018684.

486810217818 is a `hidden beast` number, since 486 + 81 + 0 + 2 + 1 + 7 + 81 + 8 = 666.

It is a super-2 number, since 2×486810217818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601371 + ... + 1155537.

It is an arithmetic number, because the mean of its divisors is an integer number (22585116840).

Almost surely, 2^486810217818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 486810217818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542042804160).

486810217818 is an abundant number, since it is smaller than the sum of its proper divisors (597275390502).

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

486810217818 is a wasteful number, since it uses less digits than its factorization.

486810217818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555531 (or 555528 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 54.

The spelling of 486810217818 in words is "four hundred eighty-six billion, eight hundred ten million, two hundred seventeen thousand, eight hundred eighteen".