28608365251 has 2 divisors, whose sum is σ = 28608365252. Its totient is φ = 28608365250.

The previous prime is 28608365213. The next prime is 28608365299. The reversal of 28608365251 is 15256380682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28608365251 - 2¹⁵ = 28608332483 is a prime.

It is not a weakly prime, because it can be changed into another prime (28608365351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14304182625 + 14304182626.

It is an arithmetic number, because the mean of its divisors is an integer number (14304182626).

Almost surely, 2^28608365251 is an apocalyptic number.

28608365251 is a deficient number, since it is larger than the sum of its proper divisors (1).

28608365251 is an equidigital number, since it uses as much as digits as its factorization.

28608365251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 28608365251 in words is "twenty-eight billion, six hundred eight million, three hundred sixty-five thousand, two hundred fifty-one".