2640484717 has 8 divisors (see below), whose sum is σ = 2845552640. Its totient is φ = 2435695920.

The previous prime is 2640484699. The next prime is 2640484723. The reversal of 2640484717 is 7174840462.

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 2640484717 - 2¹⁹ = 2639960429 is a prime.

It is a super-5 number, since 5×2640484717⁵ (a number of 48 digits) contains 55555 as substring. Note that it is a super-d number also for d = 4.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646484717) 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, 49917 + ... + 88162.

It is an arithmetic number, because the mean of its divisors is an integer number (355694080).

Almost surely, 2^2640484717 is an apocalyptic number.

It is an amenable number.

2640484717 is a deficient number, since it is larger than the sum of its proper divisors (205067923).

2640484717 is a wasteful number, since it uses less digits than its factorization.

2640484717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139563.

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 2640484717 is about 51385.6469940780. The cubic root of 2640484717 is about 1382.1692266749.

The spelling of 2640484717 in words is "two billion, six hundred forty million, four hundred eighty-four thousand, seven hundred seventeen".