87549490236 has 96 divisors (see below), whose sum is σ = 222784930368. Its totient is φ = 26598297600.

The previous prime is 87549490229. The next prime is 87549490277. The reversal of 87549490236 is 63209494578.

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 31 ways as a sum of consecutive naturals, for example, 5869540 + ... + 5884436.

It is an arithmetic number, because the mean of its divisors is an integer number (2320676358).

Almost surely, 2^87549490236 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 87549490236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111392465184).

87549490236 is an abundant number, since it is smaller than the sum of its proper divisors (135235440132).

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

87549490236 is a wasteful number, since it uses less digits than its factorization.

87549490236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15391 (or 15389 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 87549490236 in words is "eighty-seven billion, five hundred forty-nine million, four hundred ninety thousand, two hundred thirty-six".