6803750721 has 4 divisors (see below), whose sum is σ = 9071667632. Its totient is φ = 4535833812.

The previous prime is 6803750719. The next prime is 6803750741. The reversal of 6803750721 is 1270573086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6803750721 - 2¹ = 6803750719 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6803750721.

It is not an unprimeable number, because it can be changed into a prime (6803750741) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1133958451 + ... + 1133958456.

It is an arithmetic number, because the mean of its divisors is an integer number (2267916908).

Almost surely, 2^6803750721 is an apocalyptic number.

It is an amenable number.

6803750721 is a deficient number, since it is larger than the sum of its proper divisors (2267916911).

6803750721 is a wasteful number, since it uses less digits than its factorization.

6803750721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267916910.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 6803750721 is about 82484.8514637688. The cubic root of 6803750721 is about 1894.8847376885.

The spelling of 6803750721 in words is "six billion, eight hundred three million, seven hundred fifty thousand, seven hundred twenty-one".