27822381773 has 2 divisors, whose sum is σ = 27822381774. Its totient is φ = 27822381772.

The previous prime is 27822381751. The next prime is 27822381799. The reversal of 27822381773 is 37718322872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25604160169 + 2218221604 = 160013^2 + 47098^2 .

It is a cyclic number.

It is not a de Polignac number, because 27822381773 - 2¹⁰ = 27822380749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27822381703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13911190886 + 13911190887.

It is an arithmetic number, because the mean of its divisors is an integer number (13911190887).

Almost surely, 2^27822381773 is an apocalyptic number.

It is an amenable number.

27822381773 is a deficient number, since it is larger than the sum of its proper divisors (1).

27822381773 is an equidigital number, since it uses as much as digits as its factorization.

27822381773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The spelling of 27822381773 in words is "twenty-seven billion, eight hundred twenty-two million, three hundred eighty-one thousand, seven hundred seventy-three".