6543213344 has 12 divisors (see below), whose sum is σ = 12881951334. Its totient is φ = 3271606656.

The previous prime is 6543213343. The next prime is 6543213349. The reversal of 6543213344 is 4433123456.

It can be written as a sum of positive squares in only one way, i.e., 4480963600 + 2062249744 = 66940^2 + 45412^2 .

It is not an unprimeable number, because it can be changed into a prime (6543213343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102237677 + ... + 102237740.

Almost surely, 2^6543213344 is an apocalyptic number.

It is an amenable number.

6543213344 is a deficient number, since it is larger than the sum of its proper divisors (6338737990).

6543213344 is a wasteful number, since it uses less digits than its factorization.

6543213344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204475427 (or 204475419 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

The square root of 6543213344 is about 80890.1313140237. The cubic root of 6543213344 is about 1870.3821979908.

The spelling of 6543213344 in words is "six billion, five hundred forty-three million, two hundred thirteen thousand, three hundred forty-four".