812105488367 has 2 divisors, whose sum is σ = 812105488368. Its totient is φ = 812105488366.

The previous prime is 812105488351. The next prime is 812105488373. The reversal of 812105488367 is 763884501218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812105488367 - 2⁴ = 812105488351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812105488067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406052744183 + 406052744184.

It is an arithmetic number, because the mean of its divisors is an integer number (406052744184).

Almost surely, 2^812105488367 is an apocalyptic number.

812105488367 is a deficient number, since it is larger than the sum of its proper divisors (1).

812105488367 is an equidigital number, since it uses as much as digits as its factorization.

812105488367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 812105488367 in words is "eight hundred twelve billion, one hundred five million, four hundred eighty-eight thousand, three hundred sixty-seven".