6347656320 has 128 divisors (see below), whose sum is σ = 20489760000. Its totient is φ = 1671241728.

The previous prime is 6347656303. The next prime is 6347656349. The reversal of 6347656320 is 236567436.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130756 + ... + 172604.

It is an arithmetic number, because the mean of its divisors is an integer number (160076250).

Almost surely, 2^6347656320 is an apocalyptic number.

6347656320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6347656320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10244880000).

6347656320 is an abundant number, since it is smaller than the sum of its proper divisors (14142103680).

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

6347656320 is a wasteful number, since it uses less digits than its factorization.

6347656320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41950 (or 41938 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 42.

The square root of 6347656320 is about 79672.1803391874. The cubic root of 6347656320 is about 1851.5600495608.

The spelling of 6347656320 in words is "six billion, three hundred forty-seven million, six hundred fifty-six thousand, three hundred twenty".