28393741838369 has 2 divisors, whose sum is σ = 28393741838370. Its totient is φ = 28393741838368.

The previous prime is 28393741838309. The next prime is 28393741838393. The reversal of 28393741838369 is 96383814739382.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28076645587600 + 317096250769 = 5298740^2 + 563113^2 .

It is a cyclic number.

It is not a de Polignac number, because 28393741838369 - 2⁴⁴ = 10801555793953 is a prime.

It is a super-2 number, since 2×28393741838369² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28393741838296 and 28393741838305.

It is not a weakly prime, because it can be changed into another prime (28393741838309) 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, 14196870919184 + 14196870919185.

It is an arithmetic number, because the mean of its divisors is an integer number (14196870919185).

Almost surely, 2^{28393741838369} is an apocalyptic number.

It is an amenable number.

28393741838369 is a deficient number, since it is larger than the sum of its proper divisors (1).

28393741838369 is an equidigital number, since it uses as much as digits as its factorization.

28393741838369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128701952, while the sum is 74.

The spelling of 28393741838369 in words is "twenty-eight trillion, three hundred ninety-three billion, seven hundred forty-one million, eight hundred thirty-eight thousand, three hundred sixty-nine".