28060671764 has 12 divisors (see below), whose sum is σ = 49245289044. Its totient is φ = 13990589184.

The previous prime is 28060671697. The next prime is 28060671773. The reversal of 28060671764 is 46717606082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12111002500 + 15949669264 = 110050^2 + 126292^2 .

It is a congruent number.

It is an unprimeable number.

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, 9935087 + ... + 9937910.

It is an arithmetic number, because the mean of its divisors is an integer number (4103774087).

Almost surely, 2^28060671764 is an apocalyptic number.

It is an amenable number.

28060671764 is a deficient number, since it is larger than the sum of its proper divisors (21184617280).

28060671764 is a wasteful number, since it uses less digits than its factorization.

28060671764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19873354 (or 19873352 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 28060671764 in words is "twenty-eight billion, sixty million, six hundred seventy-one thousand, seven hundred sixty-four".