2785457683843 has 2 divisors, whose sum is σ = 2785457683844. Its totient is φ = 2785457683842.

The previous prime is 2785457683819. The next prime is 2785457683891. The reversal of 2785457683843 is 3483867545872.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785457683843 is a prime.

It is not a weakly prime, because it can be changed into another prime (2785457681843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392728841921 + 1392728841922.

It is an arithmetic number, because the mean of its divisors is an integer number (1392728841922).

Almost surely, 2^{2785457683843} is an apocalyptic number.

2785457683843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785457683843 is an equidigital number, since it uses as much as digits as its factorization.

2785457683843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1083801600, while the sum is 70.

The spelling of 2785457683843 in words is "two trillion, seven hundred eighty-five billion, four hundred fifty-seven million, six hundred eighty-three thousand, eight hundred forty-three".