6544213612 has 12 divisors (see below), whose sum is σ = 11461700880. Its totient is φ = 3269441936.

The previous prime is 6544213603. The next prime is 6544213649. The reversal of 6544213612 is 2163124456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660688 + ... + 670519.

It is an arithmetic number, because the mean of its divisors is an integer number (955141740).

Almost surely, 2^6544213612 is an apocalyptic number.

It is an amenable number.

6544213612 is a deficient number, since it is larger than the sum of its proper divisors (4917487268).

6544213612 is a wasteful number, since it uses less digits than its factorization.

6544213612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332440 (or 1332438 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 6544213612 is about 80896.3139580537. The cubic root of 6544213612 is about 1870.4775022414.

The spelling of 6544213612 in words is "six billion, five hundred forty-four million, two hundred thirteen thousand, six hundred twelve".