6484448520 has 160 divisors (see below), whose sum is σ = 23776441920. Its totient is φ = 1571978880.

The previous prime is 6484448491. The next prime is 6484448527. The reversal of 6484448520 is 258444846.

6484448520 is a `hidden beast` number, since 6 + 4 + 84 + 4 + 48 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6484448527) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55332 + ... + 126611.

It is an arithmetic number, because the mean of its divisors is an integer number (148602762).

Almost surely, 2^6484448520 is an apocalyptic number.

6484448520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6484448520 is an abundant number, since it is smaller than the sum of its proper divisors (17291993400).

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

6484448520 is a wasteful number, since it uses less digits than its factorization.

6484448520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181977 (or 181964 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 45.

The square root of 6484448520 is about 80526.0735414313. The cubic root of 6484448520 is about 1864.7660290070.

The spelling of 6484448520 in words is "six billion, four hundred eighty-four million, four hundred forty-eight thousand, five hundred twenty".