28845120513 has 16 divisors (see below), whose sum is σ = 42547479552. Its totient is φ = 17235666000.

The previous prime is 28845120463. The next prime is 28845120517. The reversal of 28845120513 is 31502154882.

It is not a de Polignac number, because 28845120513 - 2¹⁰ = 28845119489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28845120517) 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, 6153253 + ... + 6157938.

It is an arithmetic number, because the mean of its divisors is an integer number (2659217472).

Almost surely, 2^28845120513 is an apocalyptic number.

It is an amenable number.

28845120513 is a deficient number, since it is larger than the sum of its proper divisors (13702359039).

28845120513 is a wasteful number, since it uses less digits than its factorization.

28845120513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311276.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28845120513 in words is "twenty-eight billion, eight hundred forty-five million, one hundred twenty thousand, five hundred thirteen".