87889332500 has 30 divisors (see below), whose sum is σ = 192196397778. Its totient is φ = 35155732000.

The previous prime is 87889332499. The next prime is 87889332541. The reversal of 87889332500 is 523398878.

It can be written as a sum of positive squares in 5 ways, for example, as 50607901444 + 37281431056 = 224962^2 + 193084^2 .

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 17575367 + ... + 17580366.

Almost surely, 2^87889332500 is an apocalyptic number.

It is an amenable number.

87889332500 is an abundant number, since it is smaller than the sum of its proper divisors (104307065278).

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

87889332500 is a wasteful number, since it uses less digits than its factorization.

87889332500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35155757 (or 35155740 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 87889332500 in words is "eighty-seven billion, eight hundred eighty-nine million, three hundred thirty-two thousand, five hundred".