6244231721 has 16 divisors (see below), whose sum is σ = 7743888768. Its totient is φ = 4902768000.

The previous prime is 6244231711. The next prime is 6244231753. The reversal of 6244231721 is 1271324426.

It is not a de Polignac number, because 6244231721 - 2²² = 6240037417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6244231711) 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 15 ways as a sum of consecutive naturals, for example, 249980 + ... + 273821.

It is an arithmetic number, because the mean of its divisors is an integer number (483993048).

Almost surely, 2^6244231721 is an apocalyptic number.

It is an amenable number.

6244231721 is a deficient number, since it is larger than the sum of its proper divisors (1499657047).

6244231721 is a wasteful number, since it uses less digits than its factorization.

6244231721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523952.

The product of its digits is 16128, while the sum is 32.

The square root of 6244231721 is about 79020.4512831963. The cubic root of 6244231721 is about 1841.4488943222.

The spelling of 6244231721 in words is "six billion, two hundred forty-four million, two hundred thirty-one thousand, seven hundred twenty-one".