6224285859821 has 2 divisors, whose sum is σ = 6224285859822. Its totient is φ = 6224285859820.

The previous prime is 6224285859793. The next prime is 6224285859871. The reversal of 6224285859821 is 1289585824226.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4163697384196 + 2060588475625 = 2040514^2 + 1435475^2 .

It is a cyclic number.

It is not a de Polignac number, because 6224285859821 - 2³⁴ = 6207105990637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6224285859871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112142929910 + 3112142929911.

It is an arithmetic number, because the mean of its divisors is an integer number (3112142929911).

Almost surely, 2^{6224285859821} is an apocalyptic number.

It is an amenable number.

6224285859821 is a deficient number, since it is larger than the sum of its proper divisors (1).

6224285859821 is an equidigital number, since it uses as much as digits as its factorization.

6224285859821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44236800, while the sum is 62.

The spelling of 6224285859821 in words is "six trillion, two hundred twenty-four billion, two hundred eighty-five million, eight hundred fifty-nine thousand, eight hundred twenty-one".