87107342617 has 2 divisors, whose sum is σ = 87107342618. Its totient is φ = 87107342616.

The previous prime is 87107342573. The next prime is 87107342671. The reversal of 87107342617 is 71624370178.

Together with next prime (87107342671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81036439561 + 6070903056 = 284669^2 + 77916^2 .

It is a cyclic number.

It is not a de Polignac number, because 87107342617 - 2¹¹ = 87107340569 is a prime.

It is not a weakly prime, because it can be changed into another prime (87107342017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43553671308 + 43553671309.

It is an arithmetic number, because the mean of its divisors is an integer number (43553671309).

Almost surely, 2^87107342617 is an apocalyptic number.

It is an amenable number.

87107342617 is a deficient number, since it is larger than the sum of its proper divisors (1).

87107342617 is an equidigital number, since it uses as much as digits as its factorization.

87107342617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 87107342617 in words is "eighty-seven billion, one hundred seven million, three hundred forty-two thousand, six hundred seventeen".