2421718717 has 8 divisors (see below), whose sum is σ = 2678065920. Its totient is φ = 2171403360.

The previous prime is 2421718679. The next prime is 2421718753. The reversal of 2421718717 is 7178171242.

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 2421718717 - 2¹⁵ = 2421685949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421718717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421712717) 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, 1507117 + ... + 1508722.

It is an arithmetic number, because the mean of its divisors is an integer number (334758240).

Almost surely, 2^2421718717 is an apocalyptic number.

It is an amenable number.

2421718717 is a deficient number, since it is larger than the sum of its proper divisors (256347203).

2421718717 is a wasteful number, since it uses less digits than its factorization.

2421718717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015923.

The product of its digits is 43904, while the sum is 40.

The square root of 2421718717 is about 49210.9613500895. The cubic root of 2421718717 is about 1342.8924519866.

Adding to 2421718717 its reverse (7178171242), we get a palindrome (9599889959).

It can be divided in two parts, 242 and 1718717, that multiplied together give a palindrome (415929514).

The spelling of 2421718717 in words is "two billion, four hundred twenty-one million, seven hundred eighteen thousand, seven hundred seventeen".