2421715679 has 2 divisors, whose sum is σ = 2421715680. Its totient is φ = 2421715678.

The previous prime is 2421715657. The next prime is 2421715687. The reversal of 2421715679 is 9765171242.

2421715679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421715679 - 2²⁴ = 2404938463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421715579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210857839 + 1210857840.

It is an arithmetic number, because the mean of its divisors is an integer number (1210857840).

Almost surely, 2^2421715679 is an apocalyptic number.

2421715679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421715679 is an equidigital number, since it uses as much as digits as its factorization.

2421715679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 2421715679 is about 49210.9304829730. The cubic root of 2421715679 is about 1342.8918904420.

The spelling of 2421715679 in words is "two billion, four hundred twenty-one million, seven hundred fifteen thousand, six hundred seventy-nine".