2559620406609 has 48 divisors (see below), whose sum is σ = 4309819488000. Its totient is φ = 1433480001408.

The previous prime is 2559620406547. The next prime is 2559620406631. The reversal of 2559620406609 is 9066040269552.

2559620406609 is a `hidden beast` number, since 2 + 5 + 5 + 9 + 6 + 20 + 4 + 0 + 6 + 609 = 666.

It is not a de Polignac number, because 2559620406609 - 2¹⁹ = 2559619882321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2559620406649) 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 in 47 ways as a sum of consecutive naturals, for example, 2651467 + ... + 3485615.

It is an arithmetic number, because the mean of its divisors is an integer number (89787906000).

Almost surely, 2^{2559620406609} is an apocalyptic number.

It is an amenable number.

2559620406609 is a deficient number, since it is larger than the sum of its proper divisors (1750199081391).

2559620406609 is a wasteful number, since it uses less digits than its factorization.

2559620406609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835134 (or 835131 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 2559620406609 in words is "two trillion, five hundred fifty-nine billion, six hundred twenty million, four hundred six thousand, six hundred nine".