28120132053 has 54 divisors (see below), whose sum is σ = 45064158594. Its totient is φ = 16796818368.

The previous prime is 28120132003. The next prime is 28120132091. The reversal of 28120132053 is 35023102182.

It can be written as a sum of positive squares in 3 ways, for example, as 10366701489 + 17753430564 = 101817^2 + 133242^2 .

It is not a de Polignac number, because 28120132053 - 2¹⁷ = 28120000981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28120132003) 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 53 ways as a sum of consecutive naturals, for example, 67112278 + ... + 67112696.

Almost surely, 2^28120132053 is an apocalyptic number.

It is an amenable number.

28120132053 is a deficient number, since it is larger than the sum of its proper divisors (16944026541).

28120132053 is an equidigital number, since it uses as much as digits as its factorization.

28120132053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 28120132053 in words is "twenty-eight billion, one hundred twenty million, one hundred thirty-two thousand, fifty-three".