6480421061 has 2 divisors, whose sum is σ = 6480421062. Its totient is φ = 6480421060.

The previous prime is 6480421049. The next prime is 6480421109. The reversal of 6480421061 is 1601240846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4909804900 + 1570616161 = 70070^2 + 39631^2 .

It is a cyclic number.

It is not a de Polignac number, because 6480421061 - 2¹⁴ = 6480404677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6480421261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240210530 + 3240210531.

It is an arithmetic number, because the mean of its divisors is an integer number (3240210531).

Almost surely, 2^6480421061 is an apocalyptic number.

It is an amenable number.

6480421061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6480421061 is an equidigital number, since it uses as much as digits as its factorization.

6480421061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 6480421061 is about 80501.0624836716. The cubic root of 6480421061 is about 1864.3798833899.

The spelling of 6480421061 in words is "six billion, four hundred eighty million, four hundred twenty-one thousand, sixty-one".