87163528840 has 16 divisors (see below), whose sum is σ = 196117939980. Its totient is φ = 34865411520.

The previous prime is 87163528811. The next prime is 87163528901. The reversal of 87163528840 is 4882536178.

It can be written as a sum of positive squares in 2 ways, for example, as 84623973604 + 2539555236 = 290902^2 + 50394^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089544071 + ... + 1089544150.

Almost surely, 2^87163528840 is an apocalyptic number.

It is an amenable number.

87163528840 is an abundant number, since it is smaller than the sum of its proper divisors (108954411140).

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

87163528840 is a wasteful number, since it uses less digits than its factorization.

87163528840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179088232 (or 2179088228 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 87163528840 in words is "eighty-seven billion, one hundred sixty-three million, five hundred twenty-eight thousand, eight hundred forty".