2009464617859 has 2 divisors, whose sum is σ = 2009464617860. Its totient is φ = 2009464617858.

The previous prime is 2009464617847. The next prime is 2009464617887. The reversal of 2009464617859 is 9587164649002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2009464617859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2009464617797 and 2009464617806.

It is not a weakly prime, because it can be changed into another prime (2009464617899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004732308929 + 1004732308930.

It is an arithmetic number, because the mean of its divisors is an integer number (1004732308930).

Almost surely, 2^{2009464617859} is an apocalyptic number.

2009464617859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009464617859 is an equidigital number, since it uses as much as digits as its factorization.

2009464617859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 2009464617859 in words is "two trillion, nine billion, four hundred sixty-four million, six hundred seventeen thousand, eight hundred fifty-nine".