6531949717 has 8 divisors (see below), whose sum is σ = 6557773824. Its totient is φ = 6506172048.

The previous prime is 6531949709. The next prime is 6531949741. The reversal of 6531949717 is 7179491356.

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 6531949717 - 2³ = 6531949709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531949777) 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, 285028 + ... + 307090.

It is an arithmetic number, because the mean of its divisors is an integer number (819721728).

Almost surely, 2^6531949717 is an apocalyptic number.

It is an amenable number.

6531949717 is a deficient number, since it is larger than the sum of its proper divisors (25824107).

6531949717 is a wasteful number, since it uses less digits than its factorization.

6531949717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23219.

The product of its digits is 1428840, while the sum is 52.

The square root of 6531949717 is about 80820.4783269686. The cubic root of 6531949717 is about 1869.3083429672.

The spelling of 6531949717 in words is "six billion, five hundred thirty-one million, nine hundred forty-nine thousand, seven hundred seventeen".