28548675369 has 32 divisors (see below), whose sum is σ = 43483404800. Its totient is φ = 18501572880.

The previous prime is 28548675367. The next prime is 28548675373. The reversal of 28548675369 is 96357684582.

It is a happy number.

28548675369 is a `hidden beast` number, since 2 + 85 + 486 + 75 + 3 + 6 + 9 = 666.

It is not a de Polignac number, because 28548675369 - 2¹ = 28548675367 is a prime.

It is a super-2 number, since 2×28548675369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28548675367) 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, 186702 + ... + 303240.

It is an arithmetic number, because the mean of its divisors is an integer number (1358856400).

Almost surely, 2^28548675369 is an apocalyptic number.

It is an amenable number.

28548675369 is a deficient number, since it is larger than the sum of its proper divisors (14934729431).

28548675369 is a wasteful number, since it uses less digits than its factorization.

28548675369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116802 (or 116796 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 28548675369 in words is "twenty-eight billion, five hundred forty-eight million, six hundred seventy-five thousand, three hundred sixty-nine".