28683285507 has 12 divisors (see below), whose sum is σ = 41433454920. Its totient is φ = 19121247648.

The previous prime is 28683285497. The next prime is 28683285529. The reversal of 28683285507 is 70558238682.

28683285507 is a `hidden beast` number, since 2 + 8 + 6 + 83 + 2 + 8 + 550 + 7 = 666.

It is not a de Polignac number, because 28683285507 - 2¹⁸ = 28683023363 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28683285107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148768 + ... + 281954.

It is an arithmetic number, because the mean of its divisors is an integer number (3452787910).

Almost surely, 2^28683285507 is an apocalyptic number.

28683285507 is a deficient number, since it is larger than the sum of its proper divisors (12750169413).

28683285507 is a wasteful number, since it uses less digits than its factorization.

28683285507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157122 (or 157119 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 28683285507 in words is "twenty-eight billion, six hundred eighty-three million, two hundred eighty-five thousand, five hundred seven".