28106432402473 has 2 divisors, whose sum is σ = 28106432402474. Its totient is φ = 28106432402472.

The previous prime is 28106432402453. The next prime is 28106432402501. The reversal of 28106432402473 is 37420423460182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24829362170649 + 3277070231824 = 4982907^2 + 1810268^2 .

It is a cyclic number.

It is not a de Polignac number, because 28106432402473 - 2⁹ = 28106432401961 is a prime.

It is not a weakly prime, because it can be changed into another prime (28106432402453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053216201236 + 14053216201237.

It is an arithmetic number, because the mean of its divisors is an integer number (14053216201237).

Almost surely, 2^{28106432402473} is an apocalyptic number.

It is an amenable number.

28106432402473 is a deficient number, since it is larger than the sum of its proper divisors (1).

28106432402473 is an equidigital number, since it uses as much as digits as its factorization.

28106432402473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 28106432402473 in words is "twenty-eight trillion, one hundred six billion, four hundred thirty-two million, four hundred two thousand, four hundred seventy-three".