806104550450669 has 2 divisors, whose sum is σ = 806104550450670. Its totient is φ = 806104550450668.

The previous prime is 806104550450659. The next prime is 806104550450677. The reversal of 806104550450669 is 966054055401608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535160210260900 + 270944340189769 = 23133530^2 + 16460387^2 .

It is a cyclic number.

It is not a de Polignac number, because 806104550450669 - 2⁸ = 806104550450413 is a prime.

It is a super-2 number, since 2×806104550450669² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806104550450659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403052275225334 + 403052275225335.

It is an arithmetic number, because the mean of its divisors is an integer number (403052275225335).

Almost surely, 2^{806104550450669} is an apocalyptic number.

It is an amenable number.

806104550450669 is a deficient number, since it is larger than the sum of its proper divisors (1).

806104550450669 is an equidigital number, since it uses as much as digits as its factorization.

806104550450669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104000, while the sum is 59.

The spelling of 806104550450669 in words is "eight hundred six trillion, one hundred four billion, five hundred fifty million, four hundred fifty thousand, six hundred sixty-nine".