6480629221264 has 135 divisors (see below), whose sum is σ = 14112824503323. Its totient is φ = 2880723172800.

The previous prime is 6480629221211. The next prime is 6480629221277. The reversal of 6480629221264 is 4621229260846.

It is a happy number.

The square root of 6480629221264 is 2545708.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5264523529 + ... + 5264524759.

Almost surely, 2^{6480629221264} is an apocalyptic number.

6480629221264 is the 2545708-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6480629221264

6480629221264 is an abundant number, since it is smaller than the sum of its proper divisors (7632195282059).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6480629221264 is an equidigital number, since it uses as much as digits as its factorization.

6480629221264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 6480629221264 in words is "six trillion, four hundred eighty billion, six hundred twenty-nine million, two hundred twenty-one thousand, two hundred sixty-four".