87051490911017 has 2 divisors, whose sum is σ = 87051490911018. Its totient is φ = 87051490911016.

The previous prime is 87051490910933. The next prime is 87051490911041. The reversal of 87051490911017 is 71011909415078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87040241975296 + 11248935721 = 9329536^2 + 106061^2 .

It is a cyclic number.

It is not a de Polignac number, because 87051490911017 - 2³⁶ = 86982771434281 is a prime.

It is a super-3 number, since 3×87051490911017³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 87051490911017.

It is not a weakly prime, because it can be changed into another prime (87051490611017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43525745455508 + 43525745455509.

It is an arithmetic number, because the mean of its divisors is an integer number (43525745455509).

Almost surely, 2^{87051490911017} is an apocalyptic number.

It is an amenable number.

87051490911017 is a deficient number, since it is larger than the sum of its proper divisors (1).

87051490911017 is an equidigital number, since it uses as much as digits as its factorization.

87051490911017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 53.

The spelling of 87051490911017 in words is "eighty-seven trillion, fifty-one billion, four hundred ninety million, nine hundred eleven thousand, seventeen".