6480128430528 has 56 divisors (see below), whose sum is σ = 17401240434432. Its totient is φ = 2127803361024.

The previous prime is 6480128430511. The next prime is 6480128430541. The reversal of 6480128430528 is 8250348210846.

It is a super-2 number, since 2×6480128430528² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251857800 + ... + 251883527.

Almost surely, 2^{6480128430528} is an apocalyptic number.

It is an amenable number.

6480128430528 is an abundant number, since it is smaller than the sum of its proper divisors (10921112003904).

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

6480128430528 is a wasteful number, since it uses less digits than its factorization.

6480128430528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503741409 (or 503741399 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 6480128430528 in words is "six trillion, four hundred eighty billion, one hundred twenty-eight million, four hundred thirty thousand, five hundred twenty-eight".