6385425643218 has 16 divisors (see below), whose sum is σ = 12781345016160. Its totient is φ = 2126726259456.

The previous prime is 6385425643213. The next prime is 6385425643241. The reversal of 6385425643218 is 8123465245836.

It is not an unprimeable number, because it can be changed into a prime (6385425643213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437230828 + ... + 437245431.

It is an arithmetic number, because the mean of its divisors is an integer number (798834063510).

Almost surely, 2^{6385425643218} is an apocalyptic number.

6385425643218 is an abundant number, since it is smaller than the sum of its proper divisors (6395919372942).

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

6385425643218 is a wasteful number, since it uses less digits than its factorization.

6385425643218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874477481.

The product of its digits is 33177600, while the sum is 57.

The spelling of 6385425643218 in words is "six trillion, three hundred eighty-five billion, four hundred twenty-five million, six hundred forty-three thousand, two hundred eighteen".