28717308101 has 2 divisors, whose sum is σ = 28717308102. Its totient is φ = 28717308100.

The previous prime is 28717308079. The next prime is 28717308161. The reversal of 28717308101 is 10180371782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20814987076 + 7902321025 = 144274^2 + 88895^2 .

It is a cyclic number.

It is not a de Polignac number, because 28717308101 - 2¹⁰ = 28717307077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28717308161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14358654050 + 14358654051.

It is an arithmetic number, because the mean of its divisors is an integer number (14358654051).

Almost surely, 2^28717308101 is an apocalyptic number.

It is an amenable number.

28717308101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28717308101 is an equidigital number, since it uses as much as digits as its factorization.

28717308101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

Adding to 28717308101 its reverse (10180371782), we get a palindrome (38897679883).

The spelling of 28717308101 in words is "twenty-eight billion, seven hundred seventeen million, three hundred eight thousand, one hundred one".