28516577973 has 16 divisors (see below), whose sum is σ = 41719466880. Its totient is φ = 17217555264.

The previous prime is 28516577963. The next prime is 28516577977. The reversal of 28516577973 is 37977561582.

It is a happy number.

It is not a de Polignac number, because 28516577973 - 2⁸ = 28516577717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28516577977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6895993 + ... + 6900126.

It is an arithmetic number, because the mean of its divisors is an integer number (2607466680).

Almost surely, 2^28516577973 is an apocalyptic number.

It is an amenable number.

28516577973 is a deficient number, since it is larger than the sum of its proper divisors (13202888907).

28516577973 is a wasteful number, since it uses less digits than its factorization.

28516577973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13796188.

The product of its digits is 22226400, while the sum is 60.

The spelling of 28516577973 in words is "twenty-eight billion, five hundred sixteen million, five hundred seventy-seven thousand, nine hundred seventy-three".