87755281417 has 2 divisors, whose sum is σ = 87755281418. Its totient is φ = 87755281416.

The previous prime is 87755281403. The next prime is 87755281459. The reversal of 87755281417 is 71418255778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87618368016 + 136913401 = 296004^2 + 11701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87755281417 is a prime.

It is not a weakly prime, because it can be changed into another prime (87755281487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43877640708 + 43877640709.

It is an arithmetic number, because the mean of its divisors is an integer number (43877640709).

Almost surely, 2^87755281417 is an apocalyptic number.

It is an amenable number.

87755281417 is a deficient number, since it is larger than the sum of its proper divisors (1).

87755281417 is an equidigital number, since it uses as much as digits as its factorization.

87755281417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4390400, while the sum is 55.

The spelling of 87755281417 in words is "eighty-seven billion, seven hundred fifty-five million, two hundred eighty-one thousand, four hundred seventeen".