2828326824821 has 2 divisors, whose sum is σ = 2828326824822. Its totient is φ = 2828326824820.

The previous prime is 2828326824769. The next prime is 2828326824997. The reversal of 2828326824821 is 1284286238282.

It is a happy number.

2828326824821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2456159721796 + 372167103025 = 1567214^2 + 610055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2828326824821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2828326814821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414163412410 + 1414163412411.

It is an arithmetic number, because the mean of its divisors is an integer number (1414163412411).

Almost surely, 2^{2828326824821} is an apocalyptic number.

It is an amenable number.

2828326824821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2828326824821 is an equidigital number, since it uses as much as digits as its factorization.

2828326824821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9437184, while the sum is 56.

The spelling of 2828326824821 in words is "two trillion, eight hundred twenty-eight billion, three hundred twenty-six million, eight hundred twenty-four thousand, eight hundred twenty-one".