183728283821 has 2 divisors, whose sum is σ = 183728283822. Its totient is φ = 183728283820.

The previous prime is 183728283803. The next prime is 183728283889. The reversal of 183728283821 is 128382827381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139512708196 + 44215575625 = 373514^2 + 210275^2 .

It is an emirp because it is prime and its reverse (128382827381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 183728283821 - 2⁶ = 183728283757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183728283721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91864141910 + 91864141911.

It is an arithmetic number, because the mean of its divisors is an integer number (91864141911).

Almost surely, 2^183728283821 is an apocalyptic number.

It is an amenable number.

183728283821 is a deficient number, since it is larger than the sum of its proper divisors (1).

183728283821 is an equidigital number, since it uses as much as digits as its factorization.

183728283821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 53.

The spelling of 183728283821 in words is "one hundred eighty-three billion, seven hundred twenty-eight million, two hundred eighty-three thousand, eight hundred twenty-one".