6543444246 has 32 divisors (see below), whose sum is σ = 13676179968. Its totient is φ = 2085091680.

The previous prime is 6543444233. The next prime is 6543444251. The reversal of 6543444246 is 6424443456.

It is a happy number.

It is a super-3 number, since 3×6543444246³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6543444198 and 6543444207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257685 + ... + 281936.

It is an arithmetic number, because the mean of its divisors is an integer number (427380624).

Almost surely, 2^6543444246 is an apocalyptic number.

6543444246 is an abundant number, since it is smaller than the sum of its proper divisors (7132735722).

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

6543444246 is a wasteful number, since it uses less digits than its factorization.

6543444246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539716.

The product of its digits is 1105920, while the sum is 42.

The square root of 6543444246 is about 80891.5585583564. The cubic root of 6543444246 is about 1870.4041988991.

The spelling of 6543444246 in words is "six billion, five hundred forty-three million, four hundred forty-four thousand, two hundred forty-six".