6825305644 has 6 divisors (see below), whose sum is σ = 11944284884. Its totient is φ = 3412652820.

The previous prime is 6825305593. The next prime is 6825305653. The reversal of 6825305644 is 4465035286.

It is a self number, because there is not a number n which added to its sum of digits gives 6825305644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 853163202 + ... + 853163209.

Almost surely, 2^6825305644 is an apocalyptic number.

It is an amenable number.

6825305644 is a deficient number, since it is larger than the sum of its proper divisors (5118979240).

6825305644 is a wasteful number, since it uses less digits than its factorization.

6825305644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706326415 (or 1706326413 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The square root of 6825305644 is about 82615.4080302216. The cubic root of 6825305644 is about 1896.8836859843.

The spelling of 6825305644 in words is "six billion, eight hundred twenty-five million, three hundred five thousand, six hundred forty-four".