28568344201 has 2 divisors, whose sum is σ = 28568344202. Its totient is φ = 28568344200.

The previous prime is 28568344169. The next prime is 28568344247. The reversal of 28568344201 is 10244386582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15462673801 + 13105670400 = 124349^2 + 114480^2 .

It is a cyclic number.

It is not a de Polignac number, because 28568344201 - 2⁵ = 28568344169 is a prime.

It is a super-5 number, since 5×28568344201⁵ (a number of 53 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (28568344271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284172100 + 14284172101.

It is an arithmetic number, because the mean of its divisors is an integer number (14284172101).

Almost surely, 2^28568344201 is an apocalyptic number.

It is an amenable number.

28568344201 is a deficient number, since it is larger than the sum of its proper divisors (1).

28568344201 is an equidigital number, since it uses as much as digits as its factorization.

28568344201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 28568344201 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred forty-four thousand, two hundred one".