2818241221824 has 210 divisors, whose sum is σ = 9718093566060. Its totient is φ = 805211705088.

The previous prime is 2818241221793. The next prime is 2818241221837. The reversal of 2818241221824 is 4281221428182.

2818241221824 is a `hidden beast` number, since 2 + 8 + 18 + 2 + 412 + 218 + 2 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2818241221824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5293354 + ... + 5801385.

Almost surely, 2^{2818241221824} is an apocalyptic number.

2818241221824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2818241221824 is an abundant number, since it is smaller than the sum of its proper divisors (6899852344236).

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

2818241221824 is a wasteful number, since it uses less digits than its factorization.

2818241221824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11094777 (or 11094751 counting only the distinct ones).

The product of its digits is 262144, while the sum is 45.

The spelling of 2818241221824 in words is "two trillion, eight hundred eighteen billion, two hundred forty-one million, two hundred twenty-one thousand, eight hundred twenty-four".