87310424281 has 2 divisors, whose sum is σ = 87310424282. Its totient is φ = 87310424280.

The previous prime is 87310424249. The next prime is 87310424297. The reversal of 87310424281 is 18242401378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77526049225 + 9784375056 = 278435^2 + 98916^2 .

It is a cyclic number.

It is not a de Polignac number, because 87310424281 - 2⁵ = 87310424249 is a prime.

It is a super-2 number, since 2×87310424281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87310404281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43655212140 + 43655212141.

It is an arithmetic number, because the mean of its divisors is an integer number (43655212141).

Almost surely, 2^87310424281 is an apocalyptic number.

It is an amenable number.

87310424281 is a deficient number, since it is larger than the sum of its proper divisors (1).

87310424281 is an equidigital number, since it uses as much as digits as its factorization.

87310424281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 87310424281 in words is "eighty-seven billion, three hundred ten million, four hundred twenty-four thousand, two hundred eighty-one".