87550578872 has 8 divisors (see below), whose sum is σ = 164157335400. Its totient is φ = 43775289432.

The previous prime is 87550578853. The next prime is 87550578877. The reversal of 87550578872 is 27887505578.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87550578877) by changing a digit.

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 as a sum of consecutive naturals, namely, 5471911172 + ... + 5471911187.

It is an arithmetic number, because the mean of its divisors is an integer number (20519666925).

Almost surely, 2^87550578872 is an apocalyptic number.

It is an amenable number.

87550578872 is a deficient number, since it is larger than the sum of its proper divisors (76606756528).

87550578872 is a wasteful number, since it uses less digits than its factorization.

87550578872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943822365 (or 10943822361 counting only the distinct ones).

The product of its (nonzero) digits is 43904000, while the sum is 62.

The spelling of 87550578872 in words is "eighty-seven billion, five hundred fifty million, five hundred seventy-eight thousand, eight hundred seventy-two".