28544808475 has 12 divisors (see below), whose sum is σ = 35466511000. Its totient is φ = 22790073600.

The previous prime is 28544808437. The next prime is 28544808491. The reversal of 28544808475 is 57480844582.

It is not a de Polignac number, because 28544808475 - 2³¹ = 26397324827 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1131606 + ... + 1156555.

Almost surely, 2^28544808475 is an apocalyptic number.

28544808475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28544808475 is a deficient number, since it is larger than the sum of its proper divisors (6921702525).

28544808475 is a wasteful number, since it uses less digits than its factorization.

28544808475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288670 (or 2288665 counting only the distinct ones).

The product of its (nonzero) digits is 11468800, while the sum is 55.

The spelling of 28544808475 in words is "twenty-eight billion, five hundred forty-four million, eight hundred eight thousand, four hundred seventy-five".