2421716289 has 8 divisors (see below), whose sum is σ = 3260925312. Its totient is φ = 1598492400.

The previous prime is 2421716281. The next prime is 2421716309. The reversal of 2421716289 is 9826171242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2421716289 - 2³ = 2421716281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2421716289.

It is not an unprimeable number, because it can be changed into a prime (2421716281) 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, 3995929 + ... + 3996534.

It is an arithmetic number, because the mean of its divisors is an integer number (407615664).

Almost surely, 2^2421716289 is an apocalyptic number.

It is an amenable number.

2421716289 is a deficient number, since it is larger than the sum of its proper divisors (839209023).

2421716289 is a wasteful number, since it uses less digits than its factorization.

2421716289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992567.

The product of its digits is 96768, while the sum is 42.

The square root of 2421716289 is about 49210.9366807827. The cubic root of 2421716289 is about 1342.8920031946.

The spelling of 2421716289 in words is "two billion, four hundred twenty-one million, seven hundred sixteen thousand, two hundred eighty-nine".