6713320549 has 8 divisors (see below), whose sum is σ = 7239240792. Its totient is φ = 6188759040.

The previous prime is 6713320543. The next prime is 6713320583. The reversal of 6713320549 is 9450233176.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 379548324 + 6333772225 = 19482^2 + 79585^2 .

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 6713320549 - 2⁷ = 6713320421 is a prime.

It is a super-2 number, since 2×6713320549² = 90137345587251322802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6713320543) 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, 329404 + ... + 349189.

It is an arithmetic number, because the mean of its divisors is an integer number (904905099).

Almost surely, 2^6713320549 is an apocalyptic number.

It is an amenable number.

6713320549 is a deficient number, since it is larger than the sum of its proper divisors (525920243).

6713320549 is a wasteful number, since it uses less digits than its factorization.

6713320549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679367.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 6713320549 is about 81934.8555194918. The cubic root of 6713320549 is about 1886.4521545863.

The spelling of 6713320549 in words is "six billion, seven hundred thirteen million, three hundred twenty thousand, five hundred forty-nine".