87459359209 has 2 divisors, whose sum is σ = 87459359210. Its totient is φ = 87459359208.

The previous prime is 87459359201. The next prime is 87459359219. The reversal of 87459359209 is 90295395478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55112257600 + 32347101609 = 234760^2 + 179853^2 .

It is a cyclic number.

It is not a de Polignac number, because 87459359209 - 2³ = 87459359201 is a prime.

It is not a weakly prime, because it can be changed into another prime (87459359201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43729679604 + 43729679605.

It is an arithmetic number, because the mean of its divisors is an integer number (43729679605).

Almost surely, 2^87459359209 is an apocalyptic number.

It is an amenable number.

87459359209 is a deficient number, since it is larger than the sum of its proper divisors (1).

87459359209 is an equidigital number, since it uses as much as digits as its factorization.

87459359209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24494400, while the sum is 61.

The spelling of 87459359209 in words is "eighty-seven billion, four hundred fifty-nine million, three hundred fifty-nine thousand, two hundred nine".