28216959695039 has 16 divisors (see below), whose sum is σ = 28398171957120. Its totient is φ = 28036017291360.

The previous prime is 28216959695009. The next prime is 28216959695051. The reversal of 28216959695039 is 93059695961282.

It is a cyclic number.

It is not a de Polignac number, because 28216959695039 - 2⁸ = 28216959694783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28216959695009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139749204 + ... + 2139762390.

It is an arithmetic number, because the mean of its divisors is an integer number (1774885747320).

Almost surely, 2^{28216959695039} is an apocalyptic number.

28216959695039 is a deficient number, since it is larger than the sum of its proper divisors (181212262081).

28216959695039 is a wasteful number, since it uses less digits than its factorization.

28216959695039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22390.

The product of its (nonzero) digits is 566870400, while the sum is 74.

The spelling of 28216959695039 in words is "twenty-eight trillion, two hundred sixteen billion, nine hundred fifty-nine million, six hundred ninety-five thousand, thirty-nine".