806215680043 has 2 divisors, whose sum is σ = 806215680044. Its totient is φ = 806215680042.

The previous prime is 806215679977. The next prime is 806215680103. The reversal of 806215680043 is 340086512608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 806215680043 - 2²¹ = 806213582891 is a prime.

It is not a weakly prime, because it can be changed into another prime (806215689043) 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, 403107840021 + 403107840022.

It is an arithmetic number, because the mean of its divisors is an integer number (403107840022).

Almost surely, 2^806215680043 is an apocalyptic number.

806215680043 is a deficient number, since it is larger than the sum of its proper divisors (1).

806215680043 is an equidigital number, since it uses as much as digits as its factorization.

806215680043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 806215680043 in words is "eight hundred six billion, two hundred fifteen million, six hundred eighty thousand, forty-three".