28300071817 has 2 divisors, whose sum is σ = 28300071818. Its totient is φ = 28300071816.

The previous prime is 28300071809. The next prime is 28300071823. The reversal of 28300071817 is 71817000382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17486359696 + 10813712121 = 132236^2 + 103989^2 .

It is a cyclic number.

It is not a de Polignac number, because 28300071817 - 2³ = 28300071809 is a prime.

It is not a weakly prime, because it can be changed into another prime (28300071857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14150035908 + 14150035909.

It is an arithmetic number, because the mean of its divisors is an integer number (14150035909).

Almost surely, 2^28300071817 is an apocalyptic number.

It is an amenable number.

28300071817 is a deficient number, since it is larger than the sum of its proper divisors (1).

28300071817 is an equidigital number, since it uses as much as digits as its factorization.

28300071817 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 37.

The spelling of 28300071817 in words is "twenty-eight billion, three hundred million, seventy-one thousand, eight hundred seventeen".