28596772845 has 32 divisors (see below), whose sum is σ = 51132614400. Its totient is φ = 15163440192.

The previous prime is 28596772843. The next prime is 28596772849. The reversal of 28596772845 is 54827769582.

28596772845 is a `hidden beast` number, since 285 + 9 + 6 + 77 + 284 + 5 = 666.

It is not a de Polignac number, because 28596772845 - 2¹ = 28596772843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28596772843) 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 31 ways as a sum of consecutive naturals, for example, 588865 + ... + 635574.

It is an arithmetic number, because the mean of its divisors is an integer number (1597894200).

Almost surely, 2^28596772845 is an apocalyptic number.

It is an amenable number.

28596772845 is a deficient number, since it is larger than the sum of its proper divisors (22535841555).

28596772845 is a wasteful number, since it uses less digits than its factorization.

28596772845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224626 (or 1224620 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 28596772845 in words is "twenty-eight billion, five hundred ninety-six million, seven hundred seventy-two thousand, eight hundred forty-five".