28671568575 has 48 divisors (see below), whose sum is σ = 53736977280. Its totient is φ = 13372318080.

The previous prime is 28671568561. The next prime is 28671568631. The reversal of 28671568575 is 57586517682.

It is not a de Polignac number, because 28671568575 - 2¹³ = 28671560383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 755337 + ... + 792386.

It is an arithmetic number, because the mean of its divisors is an integer number (1119520360).

Almost surely, 2^28671568575 is an apocalyptic number.

28671568575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28671568575 is a deficient number, since it is larger than the sum of its proper divisors (25065408705).

28671568575 is a wasteful number, since it uses less digits than its factorization.

28671568575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547768 (or 1547763 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 60.

The spelling of 28671568575 in words is "twenty-eight billion, six hundred seventy-one million, five hundred sixty-eight thousand, five hundred seventy-five".