28513604079 has 24 divisors (see below), whose sum is σ = 41511618720. Its totient is φ = 18859474368.

The previous prime is 28513604071. The next prime is 28513604099. The reversal of 28513604079 is 97040631582.

28513604079 is a `hidden beast` number, since 2 + 8 + 513 + 60 + 4 + 0 + 79 = 666.

It is not a de Polignac number, because 28513604079 - 2³ = 28513604071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28513604071) 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 23 ways as a sum of consecutive naturals, for example, 614109 + ... + 658905.

It is an arithmetic number, because the mean of its divisors is an integer number (1729650780).

It is a 1-persistent number, because it is pandigital, but 2⋅28513604079 = 57027208158 is not.

Almost surely, 2^28513604079 is an apocalyptic number.

28513604079 is a deficient number, since it is larger than the sum of its proper divisors (12998014641).

28513604079 is a wasteful number, since it uses less digits than its factorization.

28513604079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45359 (or 45356 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 28513604079 in words is "twenty-eight billion, five hundred thirteen million, six hundred four thousand, seventy-nine".