6642327617 has 8 divisors (see below), whose sum is σ = 6657192360. Its totient is φ = 6627479040.

The previous prime is 6642327613. The next prime is 6642327689. The reversal of 6642327617 is 7167232466.

It can be written as a sum of positive squares in 4 ways, for example, as 282105616 + 6360222001 = 16796^2 + 79751^2 .

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 6642327617 - 2² = 6642327613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6642327613) 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, 1168859 + ... + 1174527.

It is an arithmetic number, because the mean of its divisors is an integer number (832149045).

Almost surely, 2^6642327617 is an apocalyptic number.

It is an amenable number.

6642327617 is a deficient number, since it is larger than the sum of its proper divisors (14864743).

6642327617 is a wasteful number, since it uses less digits than its factorization.

6642327617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083.

The product of its digits is 508032, while the sum is 44.

The square root of 6642327617 is about 81500.4761765230. The cubic root of 6642327617 is about 1879.7788725319.

The spelling of 6642327617 in words is "six billion, six hundred forty-two million, three hundred twenty-seven thousand, six hundred seventeen".