6261720017 has 8 divisors (see below), whose sum is σ = 7164550656. Its totient is φ = 5360964192.

The previous prime is 6261720013. The next prime is 6261720029. The reversal of 6261720017 is 7100271626.

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 6261720017 - 2² = 6261720013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6261720011) 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 7 ways as a sum of consecutive naturals, for example, 512228 + ... + 524309.

It is an arithmetic number, because the mean of its divisors is an integer number (895568832).

Almost surely, 2^6261720017 is an apocalyptic number.

It is an amenable number.

6261720017 is a deficient number, since it is larger than the sum of its proper divisors (902830639).

6261720017 is a wasteful number, since it uses less digits than its factorization.

6261720017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037407.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 6261720017 is about 79131.0306832914. The cubic root of 6261720017 is about 1843.1664146905.

The spelling of 6261720017 in words is "six billion, two hundred sixty-one million, seven hundred twenty thousand, seventeen".