412805705309 has 2 divisors, whose sum is σ = 412805705310. Its totient is φ = 412805705308.

The previous prime is 412805705303. The next prime is 412805705357. The reversal of 412805705309 is 903507508214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238251372100 + 174554333209 = 488110^2 + 417797^2 .

It is a cyclic number.

It is not a de Polignac number, because 412805705309 - 2³⁶ = 344086228573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 412805705309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412805705303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206402852654 + 206402852655.

It is an arithmetic number, because the mean of its divisors is an integer number (206402852655).

Almost surely, 2^412805705309 is an apocalyptic number.

It is an amenable number.

412805705309 is a deficient number, since it is larger than the sum of its proper divisors (1).

412805705309 is an equidigital number, since it uses as much as digits as its factorization.

412805705309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 412805705309 in words is "four hundred twelve billion, eight hundred five million, seven hundred five thousand, three hundred nine".