6354216644 has 6 divisors (see below), whose sum is σ = 11119879134. Its totient is φ = 3177108320.

The previous prime is 6354216637. The next prime is 6354216689. The reversal of 6354216644 is 4466124536.

It can be written as a sum of positive squares in only one way, i.e., 6262823044 + 91393600 = 79138^2 + 9560^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 794277077 + ... + 794277084.

It is an arithmetic number, because the mean of its divisors is an integer number (1853313189).

Almost surely, 2^6354216644 is an apocalyptic number.

It is an amenable number.

6354216644 is a deficient number, since it is larger than the sum of its proper divisors (4765662490).

6354216644 is a wasteful number, since it uses less digits than its factorization.

6354216644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588554165 (or 1588554163 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 6354216644 is about 79713.3404393518. The cubic root of 6354216644 is about 1852.1976944395.

The spelling of 6354216644 in words is "six billion, three hundred fifty-four million, two hundred sixteen thousand, six hundred forty-four".