87685169424 has 80 divisors (see below), whose sum is σ = 230048198592. Its totient is φ = 28773702144.

The previous prime is 87685169419. The next prime is 87685169449. The reversal of 87685169424 is 42496158678.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5565462 + ... + 5581194.

Almost surely, 2^87685169424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87685169424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115024099296).

87685169424 is an abundant number, since it is smaller than the sum of its proper divisors (142363029168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87685169424 is a wasteful number, since it uses less digits than its factorization.

87685169424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17544 (or 17538 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 60.

The spelling of 87685169424 in words is "eighty-seven billion, six hundred eighty-five million, one hundred sixty-nine thousand, four hundred twenty-four".