814487306671 has 2 divisors, whose sum is σ = 814487306672. Its totient is φ = 814487306670.

The previous prime is 814487306641. The next prime is 814487306719. The reversal of 814487306671 is 176603784418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 814487306671 - 2¹³ = 814487298479 is a prime.

It is a super-2 number, since 2×814487306671² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814487306641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407243653335 + 407243653336.

It is an arithmetic number, because the mean of its divisors is an integer number (407243653336).

Almost surely, 2^814487306671 is an apocalyptic number.

814487306671 is a deficient number, since it is larger than the sum of its proper divisors (1).

814487306671 is an equidigital number, since it uses as much as digits as its factorization.

814487306671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 814487306671 in words is "eight hundred fourteen billion, four hundred eighty-seven million, three hundred six thousand, six hundred seventy-one".