28427853753 has 24 divisors (see below), whose sum is σ = 44258144840. Its totient is φ = 17479411200.

The previous prime is 28427853749. The next prime is 28427853761. The reversal of 28427853753 is 35735872482.

28427853753 is a `hidden beast` number, since 2 + 84 + 27 + 8 + 537 + 5 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 320660649 + 28107193104 = 17907^2 + 167652^2 .

It is not a de Polignac number, because 28427853753 - 2² = 28427853749 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28427853753.

It is not an unprimeable number, because it can be changed into a prime (28427853763) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 39363 + ... + 241671.

Almost surely, 2^28427853753 is an apocalyptic number.

It is an amenable number.

28427853753 is a deficient number, since it is larger than the sum of its proper divisors (15830291087).

28427853753 is a wasteful number, since it uses less digits than its factorization.

28427853753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203529 (or 203526 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 28427853753 in words is "twenty-eight billion, four hundred twenty-seven million, eight hundred fifty-three thousand, seven hundred fifty-three".