6349869856 has 96 divisors (see below), whose sum is σ = 14001216768. Its totient is φ = 2809847040.

The previous prime is 6349869853. The next prime is 6349869857. The reversal of 6349869856 is 6589689436.

It is not an unprimeable number, because it can be changed into a prime (6349869853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6704775 + ... + 6705721.

It is an arithmetic number, because the mean of its divisors is an integer number (145846008).

Almost surely, 2^6349869856 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 6349869856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7000608384).

6349869856 is an abundant number, since it is smaller than the sum of its proper divisors (7651346912).

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

6349869856 is a wasteful number, since it uses less digits than its factorization.

6349869856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1446 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 64.

The square root of 6349869856 is about 79686.0706522790. The cubic root of 6349869856 is about 1851.7752480690.

The spelling of 6349869856 in words is "six billion, three hundred forty-nine million, eight hundred sixty-nine thousand, eight hundred fifty-six".