28582111361 has 2 divisors, whose sum is σ = 28582111362. Its totient is φ = 28582111360.

The previous prime is 28582111351. The next prime is 28582111367. The reversal of 28582111361 is 16311128582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17040691600 + 11541419761 = 130540^2 + 107431^2 .

It is a cyclic number.

It is not a de Polignac number, because 28582111361 - 2¹⁴ = 28582094977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28582111367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14291055680 + 14291055681.

It is an arithmetic number, because the mean of its divisors is an integer number (14291055681).

Almost surely, 2^28582111361 is an apocalyptic number.

It is an amenable number.

28582111361 is a deficient number, since it is larger than the sum of its proper divisors (1).

28582111361 is an equidigital number, since it uses as much as digits as its factorization.

28582111361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 38.

The spelling of 28582111361 in words is "twenty-eight billion, five hundred eighty-two million, one hundred eleven thousand, three hundred sixty-one".