6342353578218 has 64 divisors (see below), whose sum is σ = 14704607819520. Its totient is φ = 1786157194752.

The previous prime is 6342353578217. The next prime is 6342353578237. The reversal of 6342353578218 is 8128753532436.

It is a super-2 number, since 2×6342353578218² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6342353578217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4248748 + ... + 5544056.

It is an arithmetic number, because the mean of its divisors is an integer number (229759497180).

Almost surely, 2^{6342353578218} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6342353578218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7352303909760).

6342353578218 is an abundant number, since it is smaller than the sum of its proper divisors (8362254241302).

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

6342353578218 is a wasteful number, since it uses less digits than its factorization.

6342353578218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296991.

The product of its digits is 29030400, while the sum is 57.

The spelling of 6342353578218 in words is "six trillion, three hundred forty-two billion, three hundred fifty-three million, five hundred seventy-eight thousand, two hundred eighteen".