2421711689 has 2 divisors, whose sum is σ = 2421711690. Its totient is φ = 2421711688.

The previous prime is 2421711683. The next prime is 2421711703. The reversal of 2421711689 is 9861171242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2355452089 + 66259600 = 48533^2 + 8140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421711689 - 2¹² = 2421707593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2421711683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210855844 + 1210855845.

It is an arithmetic number, because the mean of its divisors is an integer number (1210855845).

Almost surely, 2^2421711689 is an apocalyptic number.

It is an amenable number.

2421711689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421711689 is an equidigital number, since it uses as much as digits as its factorization.

2421711689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 2421711689 is about 49210.8899431823. The cubic root of 2421711689 is about 1342.8911529289.

The spelling of 2421711689 in words is "two billion, four hundred twenty-one million, seven hundred eleven thousand, six hundred eighty-nine".