183728344381 has 2 divisors, whose sum is σ = 183728344382. Its totient is φ = 183728344380.

The previous prime is 183728344361. The next prime is 183728344403. The reversal of 183728344381 is 183443827381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118312609156 + 65415735225 = 343966^2 + 255765^2 .

It is an emirp because it is prime and its reverse (183443827381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 183728344381 - 2⁷ = 183728344253 is a prime.

It is a super-2 number, since 2×183728344381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183728344351) 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, 91864172190 + 91864172191.

It is an arithmetic number, because the mean of its divisors is an integer number (91864172191).

Almost surely, 2^183728344381 is an apocalyptic number.

It is an amenable number.

183728344381 is a deficient number, since it is larger than the sum of its proper divisors (1).

183728344381 is an equidigital number, since it uses as much as digits as its factorization.

183728344381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 52.

The spelling of 183728344381 in words is "one hundred eighty-three billion, seven hundred twenty-eight million, three hundred forty-four thousand, three hundred eighty-one".