28060640799 has 16 divisors (see below), whose sum is σ = 37494484704. Its totient is φ = 18666979200.

The previous prime is 28060640771. The next prime is 28060640801. The reversal of 28060640799 is 99704606082.

It is a happy number.

It is not a de Polignac number, because 28060640799 - 2¹¹ = 28060638751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28060640719) 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 15 ways as a sum of consecutive naturals, for example, 6583329 + ... + 6587589.

It is an arithmetic number, because the mean of its divisors is an integer number (2343405294).

Almost surely, 2^28060640799 is an apocalyptic number.

28060640799 is a deficient number, since it is larger than the sum of its proper divisors (9433843905).

28060640799 is a wasteful number, since it uses less digits than its factorization.

28060640799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 28060640799 in words is "twenty-eight billion, sixty million, six hundred forty thousand, seven hundred ninety-nine".