28328660053 has 2 divisors, whose sum is σ = 28328660054. Its totient is φ = 28328660052.

The previous prime is 28328660051. The next prime is 28328660069. The reversal of 28328660053 is 35006682382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22273174564 + 6055485489 = 149242^2 + 77817^2 .

It is a cyclic number.

It is not a de Polignac number, because 28328660053 - 2¹ = 28328660051 is a prime.

Together with 28328660051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 28328659991 and 28328660009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28328660051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14164330026 + 14164330027.

It is an arithmetic number, because the mean of its divisors is an integer number (14164330027).

Almost surely, 2^28328660053 is an apocalyptic number.

It is an amenable number.

28328660053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28328660053 is an equidigital number, since it uses as much as digits as its factorization.

28328660053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 28328660053 in words is "twenty-eight billion, three hundred twenty-eight million, six hundred sixty thousand, fifty-three".