7021828862813 has 2 divisors, whose sum is σ = 7021828862814. Its totient is φ = 7021828862812.

The previous prime is 7021828862803. The next prime is 7021828862891. The reversal of 7021828862813 is 3182688281207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5650114738009 + 1371714124804 = 2376997^2 + 1171202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7021828862813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7021828862803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510914431406 + 3510914431407.

It is an arithmetic number, because the mean of its divisors is an integer number (3510914431407).

Almost surely, 2^{7021828862813} is an apocalyptic number.

It is an amenable number.

7021828862813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7021828862813 is an equidigital number, since it uses as much as digits as its factorization.

7021828862813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4128768, while the sum is 56.

The spelling of 7021828862813 in words is "seven trillion, twenty-one billion, eight hundred twenty-eight million, eight hundred sixty-two thousand, eight hundred thirteen".