6470330021 has 2 divisors, whose sum is σ = 6470330022. Its totient is φ = 6470330020.

The previous prime is 6470330011. The next prime is 6470330051. The reversal of 6470330021 is 1200330746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5751553921 + 718776100 = 75839^2 + 26810^2 .

It is a cyclic number.

It is not a de Polignac number, because 6470330021 - 2²⁶ = 6403221157 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 (6470330011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235165010 + 3235165011.

It is an arithmetic number, because the mean of its divisors is an integer number (3235165011).

Almost surely, 2^6470330021 is an apocalyptic number.

It is an amenable number.

6470330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6470330021 is an equidigital number, since it uses as much as digits as its factorization.

6470330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 6470330021 is about 80438.3616255329. The cubic root of 6470330021 is about 1863.4116692635.

Adding to 6470330021 its reverse (1200330746), we get a palindrome (7670660767).

The spelling of 6470330021 in words is "six billion, four hundred seventy million, three hundred thirty thousand, twenty-one".