87885842500 has 90 divisors (see below), whose sum is σ = 193705202306. Its totient is φ = 34879104000.

The previous prime is 87885842459. The next prime is 87885842543. The reversal of 87885842500 is 524858878.

It can be written as a sum of positive squares in 15 ways, for example, as 86745564676 + 1140277824 = 294526^2 + 33768^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 46921564 + ... + 46923436.

Almost surely, 2^87885842500 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 87885842500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96852601153).

87885842500 is an abundant number, since it is smaller than the sum of its proper divisors (105819359806).

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

87885842500 is a wasteful number, since it uses less digits than its factorization.

87885842500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 55.

The spelling of 87885842500 in words is "eighty-seven billion, eight hundred eighty-five million, eight hundred forty-two thousand, five hundred".