28027527786133 has 2 divisors, whose sum is σ = 28027527786134. Its totient is φ = 28027527786132.

The previous prime is 28027527786131. The next prime is 28027527786157. The reversal of 28027527786133 is 33168772572082.

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., 17946890086129 + 10080637700004 = 4236377^2 + 3175002^2 .

It is a cyclic number.

It is not a de Polignac number, because 28027527786133 - 2¹ = 28027527786131 is a prime.

Together with 28027527786131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28027527786131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14013763893066 + 14013763893067.

It is an arithmetic number, because the mean of its divisors is an integer number (14013763893067).

Almost surely, 2^{28027527786133} is an apocalyptic number.

It is an amenable number.

28027527786133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28027527786133 is an equidigital number, since it uses as much as digits as its factorization.

28027527786133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47416320, while the sum is 61.

The spelling of 28027527786133 in words is "twenty-eight trillion, twenty-seven billion, five hundred twenty-seven million, seven hundred eighty-six thousand, one hundred thirty-three".