28067138243 has 2 divisors, whose sum is σ = 28067138244. Its totient is φ = 28067138242.

The previous prime is 28067138131. The next prime is 28067138269. The reversal of 28067138243 is 34283176082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28067138243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28067138194 and 28067138203.

It is not a weakly prime, because it can be changed into another prime (28067138543) 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, 14033569121 + 14033569122.

It is an arithmetic number, because the mean of its divisors is an integer number (14033569122).

Almost surely, 2^28067138243 is an apocalyptic number.

28067138243 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067138243 is an equidigital number, since it uses as much as digits as its factorization.

28067138243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 28067138243 in words is "twenty-eight billion, sixty-seven million, one hundred thirty-eight thousand, two hundred forty-three".