6480442680 has 64 divisors (see below), whose sum is σ = 19687449600. Its totient is φ = 1706240640.

The previous prime is 6480442669. The next prime is 6480442681. The reversal of 6480442680 is 862440846.

It is a super-2 number, since 2×6480442680² = 83992274657531164800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480442681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332316 + ... + 351275.

It is an arithmetic number, because the mean of its divisors is an integer number (307616400).

Almost surely, 2^6480442680 is an apocalyptic number.

6480442680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6480442680 is an abundant number, since it is smaller than the sum of its proper divisors (13207006920).

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

6480442680 is a wasteful number, since it uses less digits than its factorization.

6480442680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683684 (or 683680 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 6480442680 is about 80501.1967612904. The cubic root of 6480442680 is about 1864.3819566083.

The spelling of 6480442680 in words is "six billion, four hundred eighty million, four hundred forty-two thousand, six hundred eighty".