6221028651619 has 2 divisors, whose sum is σ = 6221028651620. Its totient is φ = 6221028651618.

The previous prime is 6221028651589. The next prime is 6221028651653. The reversal of 6221028651619 is 9161568201226.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6221028651619 - 2²³ = 6221020263011 is a prime.

It is a super-2 number, since 2×6221028651619² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6221025651619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110514325809 + 3110514325810.

It is an arithmetic number, because the mean of its divisors is an integer number (3110514325810).

Almost surely, 2^{6221028651619} is an apocalyptic number.

6221028651619 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221028651619 is an equidigital number, since it uses as much as digits as its factorization.

6221028651619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 6221028651619 in words is "six trillion, two hundred twenty-one billion, twenty-eight million, six hundred fifty-one thousand, six hundred nineteen".