28065067141 has 4 divisors (see below), whose sum is σ = 28065468492. Its totient is φ = 28064665792.

The previous prime is 28065067127. The next prime is 28065067159. The reversal of 28065067141 is 14176056082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11667240225 + 16397826916 = 108015^2 + 128054^2 .

It is a cyclic number.

It is not a de Polignac number, because 28065067141 - 2⁷ = 28065067013 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28065067094 and 28065067103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28065067171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65380 + ... + 245773.

It is an arithmetic number, because the mean of its divisors is an integer number (7016367123).

Almost surely, 2^28065067141 is an apocalyptic number.

It is an amenable number.

28065067141 is a deficient number, since it is larger than the sum of its proper divisors (401351).

28065067141 is an equidigital number, since it uses as much as digits as its factorization.

28065067141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401350.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 28065067141 in words is "twenty-eight billion, sixty-five million, sixty-seven thousand, one hundred forty-one".