6482721280 has 320 divisors, whose sum is σ = 18667376640. Its totient is φ = 2112897024.

The previous prime is 6482721269. The next prime is 6482721313. The reversal of 6482721280 is 821272846.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36216231 + ... + 36216409.

It is an arithmetic number, because the mean of its divisors is an integer number (58335552).

Almost surely, 2^6482721280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6482721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9333688320).

6482721280 is an abundant number, since it is smaller than the sum of its proper divisors (12184655360).

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

6482721280 is a wasteful number, since it uses less digits than its factorization.

6482721280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 6482721280 is about 80515.3481020855. The cubic root of 6482721280 is about 1864.6004438902.

The spelling of 6482721280 in words is "six billion, four hundred eighty-two million, seven hundred twenty-one thousand, two hundred eighty".