2819072562809 has 2 divisors, whose sum is σ = 2819072562810. Its totient is φ = 2819072562808.

The previous prime is 2819072562769. The next prime is 2819072562827. The reversal of 2819072562809 is 9082652709182.

2819072562809 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 can be written as a sum of positive squares in only one way, i.e., 2689452402025 + 129620160784 = 1639955^2 + 360028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2819072562809 - 2¹⁶ = 2819072497273 is a prime.

It is a super-2 number, since 2×2819072562809² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2819072522809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409536281404 + 1409536281405.

It is an arithmetic number, because the mean of its divisors is an integer number (1409536281405).

Almost surely, 2^{2819072562809} is an apocalyptic number.

It is an amenable number.

2819072562809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2819072562809 is an equidigital number, since it uses as much as digits as its factorization.

2819072562809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 2819072562809 in words is "two trillion, eight hundred nineteen billion, seventy-two million, five hundred sixty-two thousand, eight hundred nine".