6749245430221 has 8 divisors (see below), whose sum is σ = 7716646695744. Its totient is φ = 5782650001440.

The previous prime is 6749245430203. The next prime is 6749245430227. The reversal of 6749245430221 is 1220345429476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6749245430221 - 2⁷ = 6749245430093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749245430227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201441235 + ... + 201474736.

It is an arithmetic number, because the mean of its divisors is an integer number (964580836968).

Almost surely, 2^{6749245430221} is an apocalyptic number.

It is an amenable number.

6749245430221 is a deficient number, since it is larger than the sum of its proper divisors (967401265523).

6749245430221 is a wasteful number, since it uses less digits than its factorization.

6749245430221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402918371.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 6749245430221 in words is "six trillion, seven hundred forty-nine billion, two hundred forty-five million, four hundred thirty thousand, two hundred twenty-one".