28016685042506 has 32 divisors (see below), whose sum is σ = 45541263132288. Its totient is φ = 12875063201280.

The previous prime is 28016685042481. The next prime is 28016685042509. The reversal of 28016685042506 is 60524058661082.

It is not an unprimeable number, because it can be changed into a prime (28016685042509) 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 in 15 ways as a sum of consecutive naturals, for example, 5154326 + ... + 9088478.

It is an arithmetic number, because the mean of its divisors is an integer number (1423164472884).

Almost surely, 2^{28016685042506} is an apocalyptic number.

28016685042506 is a deficient number, since it is larger than the sum of its proper divisors (17524578089782).

28016685042506 is a wasteful number, since it uses less digits than its factorization.

28016685042506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939086.

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 28016685042506 in words is "twenty-eight trillion, sixteen billion, six hundred eighty-five million, forty-two thousand, five hundred six".