28342105828 has 12 divisors (see below), whose sum is σ = 50080226560. Its totient is φ = 14033469672.

The previous prime is 28342105823. The next prime is 28342105829. The reversal of 28342105828 is 82850124382.

It is not an unprimeable number, because it can be changed into a prime (28342105823) 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 in 3 ways as a sum of consecutive naturals, for example, 34395348 + ... + 34396171.

Almost surely, 2^28342105828 is an apocalyptic number.

It is an amenable number.

28342105828 is a deficient number, since it is larger than the sum of its proper divisors (21738120732).

28342105828 is a wasteful number, since it uses less digits than its factorization.

28342105828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68791626 (or 68791624 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 28342105828 in words is "twenty-eight billion, three hundred forty-two million, one hundred five thousand, eight hundred twenty-eight".