28976814617 has 2 divisors, whose sum is σ = 28976814618. Its totient is φ = 28976814616.

The previous prime is 28976814577. The next prime is 28976814641. The reversal of 28976814617 is 71641867982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17634777616 + 11342037001 = 132796^2 + 106499^2 .

It is a cyclic number.

It is not a de Polignac number, because 28976814617 - 2⁶ = 28976814553 is a prime.

It is not a weakly prime, because it can be changed into another prime (28976810617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14488407308 + 14488407309.

It is an arithmetic number, because the mean of its divisors is an integer number (14488407309).

Almost surely, 2^28976814617 is an apocalyptic number.

It is an amenable number.

28976814617 is a deficient number, since it is larger than the sum of its proper divisors (1).

28976814617 is an equidigital number, since it uses as much as digits as its factorization.

28976814617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The spelling of 28976814617 in words is "twenty-eight billion, nine hundred seventy-six million, eight hundred fourteen thousand, six hundred seventeen".