806389206641 has 2 divisors, whose sum is σ = 806389206642. Its totient is φ = 806389206640.

The previous prime is 806389206607. The next prime is 806389206659. The reversal of 806389206641 is 146602983608.

806389206641 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., 741209074225 + 65180132416 = 860935^2 + 255304^2 .

It is a cyclic number.

It is not a de Polignac number, because 806389206641 - 2¹⁸ = 806388944497 is a prime.

It is not a weakly prime, because it can be changed into another prime (806389206241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403194603320 + 403194603321.

It is an arithmetic number, because the mean of its divisors is an integer number (403194603321).

Almost surely, 2^806389206641 is an apocalyptic number.

It is an amenable number.

806389206641 is a deficient number, since it is larger than the sum of its proper divisors (1).

806389206641 is an equidigital number, since it uses as much as digits as its factorization.

806389206641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 806389206641 in words is "eight hundred six billion, three hundred eighty-nine million, two hundred six thousand, six hundred forty-one".