87508261709 has 8 divisors (see below), whose sum is σ = 95612495040. Its totient is φ = 79428851200.

The previous prime is 87508261699. The next prime is 87508261717. The reversal of 87508261709 is 90716280578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87508261709 - 2⁴ = 87508261693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87508261109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6198329 + ... + 6212430.

It is an arithmetic number, because the mean of its divisors is an integer number (11951561880).

Almost surely, 2^87508261709 is an apocalyptic number.

It is an amenable number.

87508261709 is a deficient number, since it is larger than the sum of its proper divisors (8104233331).

87508261709 is a wasteful number, since it uses less digits than its factorization.

87508261709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411411.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 87508261709 in words is "eighty-seven billion, five hundred eight million, two hundred sixty-one thousand, seven hundred nine".