6221028651589 has 2 divisors, whose sum is σ = 6221028651590. Its totient is φ = 6221028651588.

The previous prime is 6221028651583. The next prime is 6221028651619. The reversal of 6221028651589 is 9851568201226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3904346787364 + 2316681864225 = 1975942^2 + 1522065^2 .

It is a cyclic number.

It is not a de Polignac number, because 6221028651589 - 2⁵ = 6221028651557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6221028651583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110514325794 + 3110514325795.

It is an arithmetic number, because the mean of its divisors is an integer number (3110514325795).

Almost surely, 2^{6221028651589} is an apocalyptic number.

It is an amenable number.

6221028651589 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221028651589 is an equidigital number, since it uses as much as digits as its factorization.

6221028651589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 6221028651589 in words is "six trillion, two hundred twenty-one billion, twenty-eight million, six hundred fifty-one thousand, five hundred eighty-nine".