87310424249 has 2 divisors, whose sum is σ = 87310424250. Its totient is φ = 87310424248.

The previous prime is 87310424237. The next prime is 87310424281. The reversal of 87310424249 is 94242401378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47243196025 + 40067228224 = 217355^2 + 200168^2 .

It is a cyclic number.

It is not a de Polignac number, because 87310424249 - 2⁴ = 87310424233 is a prime.

It is a super-2 number, since 2×87310424249² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87310429249) 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, 43655212124 + 43655212125.

It is an arithmetic number, because the mean of its divisors is an integer number (43655212125).

Almost surely, 2^87310424249 is an apocalyptic number.

It is an amenable number.

87310424249 is a deficient number, since it is larger than the sum of its proper divisors (1).

87310424249 is an equidigital number, since it uses as much as digits as its factorization.

87310424249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 87310424249 in words is "eighty-seven billion, three hundred ten million, four hundred twenty-four thousand, two hundred forty-nine".