2684020459 has 2 divisors, whose sum is σ = 2684020460. Its totient is φ = 2684020458.

The previous prime is 2684020439. The next prime is 2684020477. The reversal of 2684020459 is 9540204862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2684020459 - 2¹³ = 2684012267 is a prime.

It is not a weakly prime, because it can be changed into another prime (2684020439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342010229 + 1342010230.

It is an arithmetic number, because the mean of its divisors is an integer number (1342010230).

Almost surely, 2^2684020459 is an apocalyptic number.

2684020459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2684020459 is an equidigital number, since it uses as much as digits as its factorization.

2684020459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2684020459 is about 51807.5328403119. The cubic root of 2684020459 is about 1389.7241588138.

The spelling of 2684020459 in words is "two billion, six hundred eighty-four million, twenty thousand, four hundred fifty-nine".