28140653546 has 8 divisors (see below), whose sum is σ = 42308466564. Its totient is φ = 14037831360.

The previous prime is 28140653507. The next prime is 28140653561. The reversal of 28140653546 is 64535604182.

It can be written as a sum of positive squares in 2 ways, for example, as 22842997321 + 5297656225 = 151139^2 + 72785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28140653497 and 28140653506.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16246625 + ... + 16248356.

Almost surely, 2^28140653546 is an apocalyptic number.

28140653546 is a deficient number, since it is larger than the sum of its proper divisors (14167813018).

28140653546 is a wasteful number, since it uses less digits than its factorization.

28140653546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32495416.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 28140653546 in words is "twenty-eight billion, one hundred forty million, six hundred fifty-three thousand, five hundred forty-six".