162844427077 has 2 divisors, whose sum is σ = 162844427078. Its totient is φ = 162844427076.

The previous prime is 162844426957. The next prime is 162844427129. The reversal of 162844427077 is 770724448261.

It is an a-pointer prime, because the next prime (162844427129) can be obtained adding 162844427077 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129196394721 + 33648032356 = 359439^2 + 183434^2 .

It is a cyclic number.

It is not a de Polignac number, because 162844427077 - 2¹⁹ = 162843902789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162844427777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81422213538 + 81422213539.

It is an arithmetic number, because the mean of its divisors is an integer number (81422213539).

Almost surely, 2^162844427077 is an apocalyptic number.

It is an amenable number.

162844427077 is a deficient number, since it is larger than the sum of its proper divisors (1).

162844427077 is an equidigital number, since it uses as much as digits as its factorization.

162844427077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4214784, while the sum is 52.

The spelling of 162844427077 in words is "one hundred sixty-two billion, eight hundred forty-four million, four hundred twenty-seven thousand, seventy-seven".