28225163805701 has 2 divisors, whose sum is σ = 28225163805702. Its totient is φ = 28225163805700.

The previous prime is 28225163805637. The next prime is 28225163805731. The reversal of 28225163805701 is 10750836152282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15253828528225 + 12971335277476 = 3905615^2 + 3601574^2 .

It is a cyclic number.

It is not a de Polignac number, because 28225163805701 - 2⁶ = 28225163805637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28225163805701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28225163805731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14112581902850 + 14112581902851.

It is an arithmetic number, because the mean of its divisors is an integer number (14112581902851).

Almost surely, 2^{28225163805701} is an apocalyptic number.

It is an amenable number.

28225163805701 is a deficient number, since it is larger than the sum of its proper divisors (1).

28225163805701 is an equidigital number, since it uses as much as digits as its factorization.

28225163805701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 50.

Adding to 28225163805701 its reverse (10750836152282), we get a palindrome (38975999957983).

The spelling of 28225163805701 in words is "twenty-eight trillion, two hundred twenty-five billion, one hundred sixty-three million, eight hundred five thousand, seven hundred one".