87065613512617 has 2 divisors, whose sum is σ = 87065613512618. Its totient is φ = 87065613512616.

The previous prime is 87065613512551. The next prime is 87065613512641. The reversal of 87065613512617 is 71621531656078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61763315153296 + 25302298359321 = 7858964^2 + 5030139^2 .

It is a cyclic number.

It is not a de Polignac number, because 87065613512617 - 2³¹ = 87063466028969 is a prime.

It is not a weakly prime, because it can be changed into another prime (87065613512687) 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, 43532806756308 + 43532806756309.

It is an arithmetic number, because the mean of its divisors is an integer number (43532806756309).

Almost surely, 2^{87065613512617} is an apocalyptic number.

It is an amenable number.

87065613512617 is a deficient number, since it is larger than the sum of its proper divisors (1).

87065613512617 is an equidigital number, since it uses as much as digits as its factorization.

87065613512617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 87065613512617 in words is "eighty-seven trillion, sixty-five billion, six hundred thirteen million, five hundred twelve thousand, six hundred seventeen".