28027527757157 has 2 divisors, whose sum is σ = 28027527757158. Its totient is φ = 28027527757156.

The previous prime is 28027527757111. The next prime is 28027527757181. The reversal of 28027527757157 is 75175772572082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26409464892196 + 1618062864961 = 5139014^2 + 1272031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28027527757157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28027527757093 and 28027527757102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28027527759157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14013763878578 + 14013763878579.

It is an arithmetic number, because the mean of its divisors is an integer number (14013763878579).

Almost surely, 2^{28027527757157} is an apocalyptic number.

It is an amenable number.

28027527757157 is a deficient number, since it is larger than the sum of its proper divisors (1).

28027527757157 is an equidigital number, since it uses as much as digits as its factorization.

28027527757157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134456000, while the sum is 65.

The spelling of 28027527757157 in words is "twenty-eight trillion, twenty-seven billion, five hundred twenty-seven million, seven hundred fifty-seven thousand, one hundred fifty-seven".