6347878720 has 112 divisors (see below), whose sum is σ = 16091611200. Its totient is φ = 2378280960.

The previous prime is 6347878717. The next prime is 6347878769. The reversal of 6347878720 is 278787436.

It is a congruent number.

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, 535255 + ... + 546985.

It is an arithmetic number, because the mean of its divisors is an integer number (143675100).

Almost surely, 2^6347878720 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 6347878720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8045805600).

6347878720 is an abundant number, since it is smaller than the sum of its proper divisors (9743732480).

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

6347878720 is a wasteful number, since it uses less digits than its factorization.

6347878720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856 (or 11846 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 52.

The square root of 6347878720 is about 79673.5760462652. The cubic root of 6347878720 is about 1851.5816734024.

The spelling of 6347878720 in words is "six billion, three hundred forty-seven million, eight hundred seventy-eight thousand, seven hundred twenty".