6379336021 has 2 divisors, whose sum is σ = 6379336022. Its totient is φ = 6379336020.

The previous prime is 6379335997. The next prime is 6379336069. The reversal of 6379336021 is 1206339736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5892251121 + 487084900 = 76761^2 + 22070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6379336021 is a prime.

It is a super-2 number, since 2×6379336021² = 81391856137656224882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6379336081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3189668010 + 3189668011.

It is an arithmetic number, because the mean of its divisors is an integer number (3189668011).

Almost surely, 2^6379336021 is an apocalyptic number.

It is an amenable number.

6379336021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6379336021 is an equidigital number, since it uses as much as digits as its factorization.

6379336021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 40.

The square root of 6379336021 is about 79870.7457145606. The cubic root of 6379336021 is about 1854.6351770544.

The spelling of 6379336021 in words is "six billion, three hundred seventy-nine million, three hundred thirty-six thousand, twenty-one".