87071060209 has 4 divisors (see below), whose sum is σ = 99509783104. Its totient is φ = 74632337316.

The previous prime is 87071060117. The next prime is 87071060273. The reversal of 87071060209 is 90206017078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87071060209 - 2⁷ = 87071060081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87071060299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6219361437 + ... + 6219361450.

It is an arithmetic number, because the mean of its divisors is an integer number (24877445776).

Almost surely, 2^87071060209 is an apocalyptic number.

It is an amenable number.

87071060209 is a deficient number, since it is larger than the sum of its proper divisors (12438722895).

87071060209 is a wasteful number, since it uses less digits than its factorization.

87071060209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12438722894.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 87071060209 in words is "eighty-seven billion, seventy-one million, sixty thousand, two hundred nine".