28027527504917 has 2 divisors, whose sum is σ = 28027527504918. Its totient is φ = 28027527504916.

The previous prime is 28027527504833. The next prime is 28027527504961. The reversal of 28027527504917 is 71940572572082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27257180747281 + 770346757636 = 5220841^2 + 877694^2 .

It is a cyclic number.

It is not a de Polignac number, because 28027527504917 - 2³⁴ = 28010347635733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28027527504967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14013763752458 + 14013763752459.

It is an arithmetic number, because the mean of its divisors is an integer number (14013763752459).

Almost surely, 2^{28027527504917} is an apocalyptic number.

It is an amenable number.

28027527504917 is a deficient number, since it is larger than the sum of its proper divisors (1).

28027527504917 is an equidigital number, since it uses as much as digits as its factorization.

28027527504917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19756800, while the sum is 59.

The spelling of 28027527504917 in words is "twenty-eight trillion, twenty-seven billion, five hundred twenty-seven million, five hundred four thousand, nine hundred seventeen".