87585730909 has 32 divisors (see below), whose sum is σ = 96002508800. Its totient is φ = 79626395520.

The previous prime is 87585730891. The next prime is 87585730913. The reversal of 87585730909 is 90903758578.

It is not a de Polignac number, because 87585730909 - 2²¹ = 87583633757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87585730919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16160002 + ... + 16165420.

It is an arithmetic number, because the mean of its divisors is an integer number (3000078400).

Almost surely, 2^87585730909 is an apocalyptic number.

It is an amenable number.

87585730909 is a deficient number, since it is larger than the sum of its proper divisors (8416777891).

87585730909 is a wasteful number, since it uses less digits than its factorization.

87585730909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825.

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 87585730909 in words is "eighty-seven billion, five hundred eighty-five million, seven hundred thirty thousand, nine hundred nine".