812264342443 has 2 divisors, whose sum is σ = 812264342444. Its totient is φ = 812264342442.

The previous prime is 812264342371. The next prime is 812264342479. The reversal of 812264342443 is 344243462218.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812264342443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 812264342443.

It is not a weakly prime, because it can be changed into another prime (812264348443) 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, 406132171221 + 406132171222.

It is an arithmetic number, because the mean of its divisors is an integer number (406132171222).

Almost surely, 2^812264342443 is an apocalyptic number.

812264342443 is a deficient number, since it is larger than the sum of its proper divisors (1).

812264342443 is an equidigital number, since it uses as much as digits as its factorization.

812264342443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 43.

The spelling of 812264342443 in words is "eight hundred twelve billion, two hundred sixty-four million, three hundred forty-two thousand, four hundred forty-three".